Individual Event Report
| Event #437 - Summary, and parameter estimates with source IDs |
Previously uncataloged. The sources of information are the Port Angeles "Tribune Times" and the Victoria Daily Colonist. It was slightly felt in Victoria, and more strongly felt in Port Angeles.
From the Port Angeles "Tribune Times":
"At about 6:10 o' clock Monday morning last the region about Port Angeles was treated to another slight shock of earthquake, very much resembling the visitation of two or three months ago. The tremor while slight, was distinct and unmistakable and was very generally felt by the residents of this city. Those who were up, and about their daily duties at that time, nearly all felt the disturbance, and many who were still slumbering were awakened by the motion. Others slept through it blissfully. The motion was sufficiently heavy to shake buildings decidedly and rattle loose windows, but not strong enough to do any damage of any kind. Many people who observed the phenomenon declare that it was accompanied by rumblings, while others say they did not hear any such thing. The disturbance was evidently local, as no accounts of it are given in the dispatches from other localities." |
| TIME |
LOCATION |
MAGNITUDE |
MAX. INTENSITY |
FELT AREA |
| YR |
MO |
DAY |
HR |
MIN |
AM/PM |
Time
Type |
LAT(N) |
LON(W) |
DEP
(km) |
MAG |
Mag
Type |
Felt
Plc. |
Felt
St. |
Inten-
sity |
Int.
Type |
Felt
Area |
Felt
Area
Int. |
Felt
Area
Units |
| 1911 |
2 |
13 |
6 |
10 |
A |
L |
|
|
|
|
|
Port Angeles |
WA |
|
|
|
|
|
| N-WA - 1619 |
- |
- |
- |
N-WA - 1619 |
- |
Underlying Source Material
| Source ID |
Publication |
Pub Date |
Pub Details |
| 6036 |
Victoria Daily Colonist |
1911 |
Tues. Feb. 14, 1911 p7 c2 |
Transcription: EARTH TREMOR FELT HERE
Centre of Seismic Unrest Believed to have been Some Point in Straits of Juan de Fuca.
An earth tremor of brief duration, probably not lasting more that two seconds was felt in Victoria yesterday shortly after 6 a.m. No record was made by the pendulum of the seismograph established in the Post office building. This is explained by Mr. Napfer Dension as probably due to the fact that the earth tremor had a north to south movement, while the local pendulum records east to west phases of the earth's unrest. Even if yesterday's tremor had an east to west movement its duration was so brief as to render it unlikely that an oscillation would have been set up on the local instrument.
Mr. Desion points out that it is of interest to note that yesterday's tremor took place during the passing of a widespread storm area when the barometer reading in Victoria was 29 inches. This would mean that lifting of an enormous load from a large area and though this fact in itself might not be sufficient to cause an earth tremor if it happened in conjuction with an earth strain, the taking off of this great load from the earth's surface would bring about what is known as the "trigger" effect - causing a fracture in some portion of the earth's crust. This fracture, Mr. Denison believes may have occurred somewhere at the bottom of the Straight of Juan de Fuca, at a point which lies directly on what is known as a seismic zone. |
| |
| Source ID |
Publication |
Pub Date |
Pub Details |
| 1619 |
Tribune Times |
1911 |
Feb. 17, 1911 |
| Transcription: At about 6:10 o' clock Monday morning last the region about Port Angeles was treated to another slight shock of earthquake, very much resembling the visitation of two or three months ago. The tremor while slight, was distinct and unmistakable and was very generally felt by the residents of this city. Those who were up, and about their daily duties at that time, nearly all felt the disturbance, and many who were still slumbering were awakened by the motion. Others slept through it blissfully. The motion was sufficiently heavy to shake buildings decidedly and rattle loose windows, but not strong enough to do any damage of any kind. Many people who observed the phenomenon declare that it was accompanied by rumblings, while others say they did not hear any such thing. The disturbance was evidently local, as no accounts of it are given in the dispatches from other localities. |
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