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1882
pub pubpl pubde smem pubda
Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park

Portland 10:48 pm; 30 Apr 1882 direction W-E -Am. Jr. Sc. III-XXV-356 Shaken by two earthquakes a few seconds apart; the first light and the second more severe. Felt as far north as Olympia, Wash and Victoria, BC
Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park

Victoria 10:48 pm 30 April, 1882 direction W-E -Am Jr Sc, ser III, vol 55, pg 356 Origin near Portland, Oregon.
Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park

Olympia 10:48 pm 30 Apr, 1882 Direction W-E -Am Jr Sc III, vol 25, pg 356 Origin near Portland, Ore. See card under Oregon.
Reid 2, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park

Portland 10:48p April 30, 1882 W-E; Shaken by 2 earthquakes a few seconds apart.
U. S. Weather Bureau Climatological Records, for the State of Washington
National Archives Microfilm Copy T907, Roll Nos. 530-537, 1819-1892 - Bainbridge Island, Kitsap County - Riley Hoskinson-handwritten weather forms. Researched by Gerald Elfendahl, curator, Bainbridge Island Hist. Soc. From Roll No. 530:
Bainbridge Island, Kitsap County

May 1882: Earthquakes: had one on April 30th at 10:40 p. m. Shook crockery, wary, quite severe.
1819-1892
Seattle Daily Chronicle Seattle, WA Monday, May 1, 1882 THE EARTHQUAKE

The distinct shock of an earthquake was felt in this city last night at 5 minutes past eleven. The vibrations appeared to be from southeast to northwest, and parties oc- cupying rooms on the second and third floors received rather a lively shaking up. The shock lasted about ten seconds. The more nervous of our populace became considerably excited. Many supposed that a volcanic eruption has suddenly taken place from Mt. Rainier, but the general appearance of that lofty eminence this morning remained unchanged, and gave no evidence of having taken a hand in the disturbances of the night. Telegraphic communications have failed to definietely locate the business centre of the earthquake, but the prevailing opinion is to the effect that it originated in the range of mountains east of us.
1882
The Oregonian Portland, OR May 2, 1882, pg 3, c. 3 1882, May 1, Monday. Portland.

THE EARTHQUAKE

It was about the only topic of conversation yesterday, and discussion took varied shape. Every one had a very interesting story of how badly he was scared, and the accounts told by three hundred or four hundred paterfamilie of how their wives, snatching the youngest child, rushed en dishabille to the front door, had just sufficient variety to prove that one man had not repeated the other's experience. But then this was no earthquake. It was the very mildest kind of a shock as compared with other entertainments of like charac- ter. It didn't seem to be the genuine stuff. It was a snide, ornery kind of an earthquake. Of more than one hundred and fifty men, to whom Oregonian reporters spoke in their customary rounds, only two could be found who had not felt quakes all the way from three to thirty-seven time so severe. These two came from Kansas, where the country produces nothing but republicans, prohibition laws and grasshoppers and nothing better could be expected. The man from Valparaiso had seen quakes twice a week for eight years, compared with which our little side show was as Mt. Tabor to Mt. Hood. The man who spent six months in Ecuador said quakes were as common there as rain in Astoria, and told how the natives when they heard the rumbling would fall on their face and utter prayers specially committed for such occasions. The man who ran a railway line in Peru in 1875 told about a quake having shaken a lump of dirt weighing 1000 tons on the spot from which they had moved their camp fifteen minutes before. The man who lived fifteen years in Australia said: "the more quakes you see, the worse scared you are. In other words, fear increases directly as the square of the number you go through." The man who had been feeding on quinine for the past six weeks, said even the earth in Oregon was afflicted with the malaria and this was only a chill.

The damage here was inconsiderable-- no chimneys demolished, no glass- ware smashed, no walls cracked, no buildings settled, no seasickness-- only a scare, that's all.

The wave was general in this section, as the following telegrams to The Oregonian indicate:

AT OLYMPIA [Special Dispatch to the Oregonian] Olympia, May 1.-- Last night at 10 minutes to 11, a very sharp earth- quake shock was felt, the motion being southeast and northwest. No damage was done here with the exception of one or two chimneys falling and many persons feeling sick at the stomach. The vibration of the first shock continued about six seconds, and the second about eight. A slight trembling was again felt about 1 o'clock this morning. A peculiar rumbling noise continued during the first shocks like an escape of steam. Yesterday and especially last evening, was extremely sultry, and about 7 o'clock, the barometer had fallen about a quarter of an inch during the day. This morning at half-past 6, a cloud of black smoke arose from Mount Rainier, and since then heavy clouds have been forming around the peak. To-day the weather is warm and pleasant.

AT NEW TACOMA [Special Dispatch to the Oregonian.] New Tacoma, May 1.-- The heaviest shock from the effects of earthquake that was ever experienced by the oldest settler of this portion of Puget sound was experienced about a quarter to 11 o'clock last night. It was so great that many persons had to support themselves for fear of being thrown down. Immediately after the great trembling of the earth the earth waved as a ship at sea, (of course not so great). Many ladies fainted from fright. No damage so far as heard.

AT SALEM [Special Dispatch to the Oregonian.] Salem, May 1.-- The earthquake shock of last night was plainly felt by vari- ous residents of this city, alarming many women and children and playing sad havoc with persons of nervous temperament. It was more perceptible on Piety hill, where crockery rattled and hanging lamps swayed to an alarming extent. No damage done.

AT ASTORIA [Special Dispatch to the Oregonian.] Astoria, May 1.-- The severest earthquake shock ever known here occurred at 10:45 last night. Motion north to south. Buildings were wracked but none prostrated.
AT SEATTLE [Special Dispatch to the Oregonian.] Seattle, May 1.-- The shock of an earthquake was felt here at 11 o'clock last night, the vibration being from north to south. Its visible effect extended no further than the stoppage of clocks.
AT PORT TOWNSEND [Special Dispatch to the Oregonian.]Port Townsend, May 1.-- At twenty minutes to 11 a sharp shock of earth- quake occurred here, lasting about twenty seconds. The vibrations seemed to be from north to south.
1882
The Oregonian Portland, OR May 3, 1882, pg 3, c. 3 1882, May 2, Tuesday. Portland.

FROM ASTORIA Incidents of the Quake--Crowded House Greets the Minstrels- -How the Oregonian is Appreciated. [From the Oregonian's local correspondent.]

Astoria, May 1. The earthquake shock of last night afforded a subject of general conver- sation to all throughout today. Each individual seemed to have a varied experience and different sensation while it lasted. On one point all agreed and that was that it was the severest shock they had ever felt, a statement that was coincided in by many who resided in California in 1862 and 1868 and remem- bered the heavy shakes of those years in that state. More than one head of a family, roused from sleep by the noise and racket, convinced that burglars were trying to effect an entrance into their domicile, seized their revolvers in ord- er to be prepared to meet them. Many ladies were very seri- ously fright- ened, one indeed into spasms to such an extent that she is yet seriously ill from the effects. In some of the stores piles of crockery and other articles were thrown from the shelves and found piled on the floor in the morn- ing. Fortunately no buildings that we have heard of were overthrown, though much damage was done to plastered walls and ceilings in many of them.
1882
Washington Standard Olympia , WA (weekly), May 5, 1882, p. 2 Something about earthquakes

Sunday night, at ten minutes to eleven o'clock, when most of people were in their beds, a heavy shock of an earthquake was felt, which awakened many of the sleeping ones and removed all thought of slumber from the minds of others who connect such visitations in some way with thoughts of the Judgement Day. The first vibration was light, lasting probably about two seconds, and seemed to be from the sourthwest to the notrheast. This was followed, at an interval of a few seconds, by a heavier movement, lasting apparently eight or ten seconds. The scene, to one on the street at the time of the occurrence, was calculated to im- press the mind with the majesty of those mysterious forces of nature which occasionally, by some unusual manifestation, illustrate the omnipotence of divine power. The tall shade trees were violently agitated, their branches thrashing together in a manner produced by no other natural means, the buildings creaked like ships at sea, and everythtng mov- able swayed to and fro in obedience to a force irresistibly grand and peculiar. The feeling of awe induced by the strange phenomena was dispelled by the scenes which followed immediately afterwards, when half-clad women and crying children poured forth into the streets like bees from a great hive, to be reinforced by stalwart men who showed scarely less trepidation. Many who have had their ascension robes ready for years, appeared decidedly averse to donning them, when it was expected every moment that Gabriel would toot his horn of resurrection. In this poor human nature manifests itself, and it is a remarkable act that those who profess to place the greatest trust in Providence likewise retain with the most deter- mined peristance the remainder of the Davy Crockett motto about keeping their powder dry. The shock did no damage in this vicinity except demolishing several chimney-tops

Its Extent

The shock Sunday night was felt simultaneously throughout Oregon on the South and by our British Columbia neighbors to the north of us. At Portland it was said to have been quite as severe as the shock nine years ago although strange to relate, it did no damage, a result quite inexpected where lofty brick buildings are subjected to the trying ordeal. .... followed by a general discussion of world-wide seismicity and subsidence (about 2 full columns in length)…
1882
Olympia Transcript Olympia , WA Saturday, May 6, 1882 THE EARTHQUAKE

One of the severest earthquake shocks occurred about a quarter to eleven o'clock Sunday night. The vibrations were from north to south, and lasted but a few seconds. No damage was done except the falling of one or two chimneys, the breaking of a few window glass, and many persons felling as if they were sea sick. The shock seemed to be about the same throughout Western Washington and the Willamette Valley, but was not felt in California or east of the moun- tains. Two or three slight shocks have also been felt during the week.
1882
Seattle Daily Post Intelligencer Seattle May 4, 1882, p. 4, col. 1 THE EARTHQUAKE IN VICTORIA - The Colonist gives us the following account of the recent earthquake in Victoria. "At 10:45 p.m. on Sunday night the shock of an earthquake caused doors, windows and crockery in this vicinity to rattle and somewhat alarmed new resi- dents who are not accustomed to such violent sublunary emotions. The movement seemed to be from northeast to sourwest. In some instances crockery was thrown from shelves. In one house, at least, a candle was thrown from a chair and extinguished. Some persons who were walking across the floor and others who were sound asleep did not feel the shock in the least. It is mentioned as a remarkable circumstance that a few minutes before the shock occurred dogs were heard to howl dismally. The barometer at 11:15 p.m. was 31.07; thermometer 64 degrees. In the district, some of the houses were shoken [sic] up at a livelier rate than was pleasant for the occupants. Mr. William Pollard's family sought safety by flight amid the fall of plaster, the rattling of casements and the creaking and groaning of the timbers. The house was damaged to the extent of $50. This same house was shaken severely by the earthquake of August, 1880. It is accounted for by the fact that it is built on a rock. We have always believed that the man whose house stands on a rock occupies a pretty sure foundation. 1882
Seattle Post Intelligencer Seattle, WA May 1 issue missing; Found May 2, 1882 Port Townsend, May 1
About twenty minutes to eleven last night a sharp shock was felt here. It lasted about 20 seconds. The vibra- tions seemed to be from north to south.
1882
Daily Astorian Astoria, OR Tuesday, May 2, 1882 (no edition on Monday, May 1, 1882) Earthquake Items

Clatsop Plains, April 30
Editor Astorian: An earth- quake passed here at 11:10 p.m. The apparent direction was from southeast to northwest; duration about 10 seconds. It was heavy enough to make a person uncomfortable. S.

Seaside, May 1
Editor Astorian: Last night about 11 o'clock two severe shocks of earth- quake occurred here. Each shocl was preceded by a rumbling noise of two or three seconds duration. Oscillation, east to west, I should judge. X

Astoria, April 30
Editor, Astorian: At 10:50 p.m. Sunday a severe shock of earthquake was felt at Seaside. The shock lasted for fully ten seconds, and was so distinct that several persons seated in a house rushed to the door, ex- pecting the building to fall. Resident.
1882
Weekly Astorian Astoria, OR (weekly)Friday, May 5, 1882 The earthquake at Westport Westport, May 1

Editor Astorian: Last night at about 10:30, two severe shocks of earth- quake were felt in this vicinity. We were in a fishing boat on the river, the river was smooth, and the moon shining. The undulations seemed to move from SSW to NNE, with a loud rumbling noise, as if the boat was going over rapids and grating on the bottom. The fish were jumping in all directions, and sharp reports on land, as if the mountains were breaking and timber falling were heard. I looked at my watch and (by my time) it was 29 minutes after 10.

UNO TREMOLO A Lively Shaking Up.
At nine minutes to eleven last Saturday night two severe shocks of earthquake were felt in this city, surpassing in force and duration anything ever experienced here before. The first shock was preceded by a low, rumbling noise, and was immediately followed by an os- cillatory motion that effectually aroused those who had retired, and sent a good many flying out in abbreviated cos- tumes to see what was the matter. The streets were immedately filled with people, and several business men went down to their stores to see if any damage had been sustained. Beyond the upsetting of some goods from the shelves no further trouble was occasioned, though a good many were badly frightened at the second shock, which rocked the houses, fearing a third, which, if a little more violent, would have proved most disastrous. The line of vibration seemed to be from southeast to northwest, and, that atmospheric phenomena had some connection with the internal digestion of the earth is evinced by the fact that through all the evening and the fore part of the night it was still and sultry. Immediately after the earthquake a wind arose, the air grew cold and moist and the sky was suddenly over- cast. Fishermen near the bar report that they felt their boats jar, but there was no tidal wave. Residents on the hillside say that the shock seemed much heavier to them than those who live nearer the water's edge report. The shocks were felt with equal force at Skipanon and Fort Stevens. There were two shocks at Portland. The Oregonian says that they were the severest ever felt in that city. Reports from Oregon City indicate that the area of disturbance was a wide one. We are informed that the shock here was the hardest ever felt on the northwest coast in the memory of any one living. It had the singular effect of making several sick at the stomach, and gave every one a lively shaking up.
1882
The Willamette Farmer Salem, OR Monday, May 5, 1882 A message from Olympia reports that the morning after the earthquake Mount Rainier was smoking away quite seriously. Perhaps the old mountain was somewhat reponsible for the shaking-up we all had. It does seem as if careful observation sould determine some points concerning the late event, so as to locate the seat of the difficulty. One should like to know where the shaking came from, and it was no slight affair to set so much of the earth quaking at once. 1882
Washington Standard Olympia , WA May 12, 1882; p. 2 Our late earthquake had the distinguished honor of being made the subject of comment in every leading paper of this coast. The reports would seem to indicate that the earth-wave was wholly confined within the limits of Oregon, our own Territory and the southern portion of Vancouver Island and perhaps a small section of the mainland British possessions. 1882
Oregonian Portland, OR May 1, 1882; pg 3, col 3 AN EARTHQUAKE
At 12 minutes to 11 o'clock last night a slight earthquake shock was felt, lasting probably two seconds. This was followed about three seconds later by a more severe shock, accompanied by a low rumbling, which lasted from five to seven seconds. Every building in the city was shaken and sleepers were generally aroused. In THE OREGONIAN office it seemed as though the big press was sinking through the floor, pulling the walls in in its descent. A gas fixture attached to the ceiling vibrated through an arc of about ten inches. In the larger buildings, particularly the Clarendon hotel, New Market theater and Union block, the shock was more keenly felt, and residences in the western portion of the city shook as though they must fall. The wave seemed to take a direction from north of east to south of west. Though the shock was by far the most severe ever felt in Portland no damage beyond excessive fright resulted. A gentleman who witnessed the two greatest shocks experienced in San Francisco gave it as his opinion that this was more severe.
Mr. Wm. Pratt, at Oregon City, telephoned THE OREGONIAN that two shocks, one slight, one heavy, were felt there, but that no damage resulted as far as he could learn. Owners of a dozen telephones here very kindly rang up this office to ask whether we also had felt the shock, and told how badly they were scared. Owing to the lateness of the hour and telegraph offices being closed reports from neighboring towns were not to be had.
At 12:25 this morning another slight shock was felt.
1882
Daily Standard Victoria, B.C. May 1, 1882 At 10:45 p.m. on Sunday night the shock of an earthquake caused doors, windows and crockery in this vicinity to rattle and somewhat alarmed new resi- dents who are not accustomed to such violent sublunary emotions. The movement seemed to be from northeast to sourwest. In some instances crockery was thrown from shelves. In one house, at least, a candle was thrown from a chair and extinguished. Some persons who were walking across the floor and others who were sound asleep did not feel the shock in the least. It is mentioned as a remarkable circumstance that a few minutes be-fore the shock occurred dogs were heard to howl dismally. The barometer at 11:15 p.m. was 31.07; thermometer 64 degrees. In the district, some of the houses were shaken up at a livelier rate than was pleasant for the occupants. Mr. William Pollard's family sought safety by flight amid the fall of plaster, the rattling of casements and the creaking and groaning of the timbers. The house was damaged to the extent of $50. This same house was shaken severely by the earthquake of August, 1880. It is accounted for by the fact that it is built on a rock. We have always believed that the man whose house stands on a rock occupies a pretty sure foundation. 1882
Puget Sound Weekly Courier Olympia , WA (weekly) Friday May 5, 1882 On Sunday night last at ten minutes to eleven this place was visited by a smart shock of earthquake which probably lasted for some ten or 12 seconds causing a general commotion amongst crockery and glass and frightening many of our citizens. No material damage was done as far as could be learned with the exception of the destruction of a couple of chimneys. Several persons became quite sick from the effects of the shock and did not quite recover for a whole day. The vibrations seeemed to be from southeast to northwest and were followed by a rumbling sound along the bay. 1882
The American Journal of Science
Third Series, Vol. XXV, Nos. 145-150, January to June 1883, page 356 Rockwood, C. G. "Notices of American Earthquakes", THE AMERICAN JOURNAL OF SCIENCE, Third Series, VOL. XXV, Nos. 145-150, January to June 1883, p. 356.

April 30, 1882 - At 10:48 P. M. the vicinity of Portland, Oregon, was shaken by two earthquake shocks, a few seconds apart, the first light, the second more severe, with a low rumbling; vibration in a general west-east direction. Another light shock followed at 12:25 A. M. of May 1. The heavier shock was reported as far north as Olympia, W. T., and Victoria, B. A.
1883
Monthly Weather Review
Monthly Weather Review, April 1882; Appendix 83 Report of the Chief Signal Officer of the Army; Report of the Secretary of War, V. 4, part 1, 1883 Monthly Weather Review, April 1882
EARTHQUAKES.--

Olympia, Wash., 30th, 10.50 p.m., severe earthquake shock; wave seemed to be from west to northwest, followed by a succession of tremblings, lasting six or eight seconds, and then by a heavy shock, almost throwing persons from their feet; large trees were swayed to and fro as from a heavy blast of wind; clocks were stopped and crockery bro- ken; two chimneys in the city thrown down. The ground seemed to have an undulatory motion. Duration of the entire shock was about twenty-five seconds. Fort Canby, Wash., 30th, 10.50 p.m., four distinct earthquake shocks were felt at this place, lasting about fifteen seconds; vibration from southwest to northeast. Victoria, British Columbia, 30th, 10.45 p.m., a shock of earthquake lasting several seconds was felt at this place; vibration from west to east.
Holden, Edward S., 1887, List of Recorded Earthquakes in California, Lower California, Oregon, and Washington Territory
Printed by Direction of the Regents of the University of California, Sacremento, California, 1882. April 30; 10:48 p.m. Two shocks, Portland, Oregon.--C.G.R. 1887
Tacoma Daily News Tacoma, WA March 9, 1891; pg 8, c. 2 IT WAS AN EARTHQUAKE
Tacomans Distictly Felt the Shock Last Saturday Evening
A festive earthquake visited Tacoma and the surrounding country last Saturday evening. It was felt at 7:40 o'clock. There were two shocks almost instantaneously, the two not lasting over half a minute. For a few brief seconds large buildings trembled, the shock being readily felt by persons in upper stories. Many people on the street and the lower part of the buildings failed to notice it. The wave hovered from north to south, with a very slight eastward trend. Dispatches from surrounding towns through the Puyallup valley and down the Sound state that the trembling was felt in them also. Many think that Mount Tacoma is con nected with the earthquake. The last wave felt here was in 1882.
1891
Leslie M. Scott, Memoranda of the Files of the Oregonian 1850-1910, Oregon Historical Society Portland, OR Unpublished index to the Oregonian at Portland, O-May 1, 1882; p. 3, 250 w. 1910
Leslie M. Scott, Memoranda of the Files of the Oregonian 1850-1910, Oregon Historical Society Portland, OR Unpublished index to the Oregonian at Portland, Olympia, Tacoma, Salem, Astoria, Seattle, Port Townsend, Apr. 30, 1882, O-May 1-2 1882; no damage 1910
Morning Oregonian Portland, OR May 2, 1928, p. 11 The Morning Oregonian, Portland, Oregon, Wednesday, May 2, 1928, p. 11.

THAT WAS AN EVENTFUL DAY IN PORTLAND WHEN THE FIRST EARTHQUAKE OCCURRED (by Edward M. Miller)

Portland has had two or three earthquakes, but, as first-class earthquakes go, the local temblors have been flat failures. The first of the quakes took place at 20 minutes to 10 o'clock on the night of Saturday, December 14, 1872. Most of the city's 10,000 inhabitants had gone to bed, although a few were in heavy session at lodge meetings. Save for a few awakenings of sleepers, frightening of timid sdouls and widespread shivering of buildinmgs, the incident is scarely worth mentioning, were it not for the rather amusing incidentt which accompanied the quake.

Lodge was in session at Good Templars' hall, corner First and Alder streets. The good citizens were proceeding nicely with the ritual when the building began to rock. Gas chandeliers oscillated madly. The lodge secretary clutched convulsively at his table and cried out, "Earthquake!"--a circumstance which brought the lodge to its feet in a twinkling. After 15 seconds the temblors ceased and the excitement subsided. At the same moment, on L street near the ferry landing, a fellow who was asleep in a saloon and under the influence of liquor, sprang suddenly to his feet and uttered a loud cry of fright. Walls of the saloon shook rather violently.

"The sleepers at the Clarendon hotel," reported The Oregonian, "were starled by the jar, and numbers of the ladies and gentlemen were seen flitting lively around the halls in a condition strangley suggestive of our first parents in Eden." The abrupt jars in the Clarendon were attributed to the unstable foundations of the building rather than the severity of the quake. "We have heard of numerous other ludicrous incidents connected with the slight brush of the ague," commented The Oregonian, "but space forbids." The quake was felt quite generally east of the mountains and up the Willamette valley. Though lacking in severity, the earthquake was sufficient to claim the attention of the Portlanders and set them wondering about the next temblor. They were rewarded on April 30, 1882, with a seond picture-swinging affair, but nothing serious happened.
1928
Townley, S. D. and M. W. Allen, 1939, Descriptive Catalog of Earthquakes of the Pacific Coast of the United States 1769-1928, Chap. III Earthquakes in Washington, 1883-1928, BSSA, V. 29, No. 1, pp. 259-268

[1882 April 30. 10:48 p.m. Western Washington. Felt from Portland to Victoria, B. C. Olympia is the only place in Washington from which a report came.-Amer. Jour. Sci., 3d ser., 25,356.] 1939
Townley, S.D. and M.W. Allen, 1939, Descriptive Catalog of earthquakes of the Pacific Coast of the United States 1769 to 1928, Chapter II, Earthquakes in Oregon--1846-1928, BSSA, V. 29, No. 1, pp. 253-258.

1882 April 30. 10:48 p.m. IV. Portland. Two shocks.-CGR; P. [A few seconds apart; second shock more severe; felt in Washington and Victoria.-Amer. Jour. Sci., 3d ser., 25, 356.] 1939
Byerly, Perry, 1952, Pacific Coast Earthquakes, Condon Lecture, pp. 33-38
U.W. Library, N979 B991p, Special Collections) 1882, April 30 IV in Portland. Two shocks. Felt in Washington and Victoria. 1952
Milne, W.G., 1956, Seismic Activity in Canada, west of the 113th meridian 1841-1951: Canada Dominion Obs. Pub., V. 18, No. 7, pp. 119-146

1882 APRIL 30. 10:45 p.m. IV-V in Victoria, where the motion seemed to be from northeast to southwest. Some crockery was thrown down, and some loose plaster fell, but the earthquake was not felt by all persons in Victoria. It was felt as far south as Portland. Col. 1957
R.S. Ludwin and A.I. Qamar, 1991, 1882 Earthquake Rediscovered, Washington Geology, V. 19, N. 2, pp. 12-13.

The 1882 earthquake - rediscovery of a moderate sized subcrustal earthquake in south Puget Sound
R.S. Ludwin and A.I. Qamar
Synopsis:
During a review of original newspaper accounts of earthquakes in Washington and Oregon, we discovered an earthquake which occurred on April 30, 1882 at 10:48 PM local time (May 1, 6:48 GMT) and was widely felt in Oregon, Washington Territory, and southern Vancouver Island. It made a considerable impression on the populace although apart from a few broken chimney tops and window panes in Olympia, and crockery and glassware damage there and elsewhere, no damage was reported.

Descriptions of the effects of the 1882 earthquake in newspaper accounts allow us to sketch approximate intensity contours. The intensity 5 and 6 contours for this earthquake appear very like those of the 1939 "Olympic" earthquake
(1939 event was located at 47.4, 122.6 per EQ Hist. of US). This similarity of isoseismal contours suggest that the two earthquakes were of similar location, magnitude, and depth., The 1939 earthquake is considered subcrustal, probably at a depth of 40-70 km within the subducting Juan de Fuca plate; its magnitude has been estimated at 5.75-6.2.
1991