1928-1970 Washington and Oregon
Earthquake information and Isoseismal Maps
from: United States Earthquakes, U.S. Department of Commerce, Coast and Geodetic Survey
1928-1970 Washington and Oregon
from: United States Earthquakes, U.S. Department of Commerce, Coast and Geodetic Survey
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| YEAR Links to text and isoseismal maps | DATE Links to isoseismal maps only | TIME (UTC) | LAT(N) | LON(W) | DEP | MAG | COMMENTS |
|---|---|---|---|---|---|---|---|
| 1928 | 1928/02/09 | 11:05:00 | 49.00N | 125.30W | - | 5.8 | 48.1 km ESE of Tofino, BC |
| 1929 | |||||||
| 1930 | 1930/07/19 | 02:38:00 | 45.00N | 123.18W | - | 5.0 | 14.5 km WNW of Salem, OR |
| 1931 | 1931/04/18 | 03:55:00 | 48.70N | 122.18W | - | 5.0 | 14.0 km S of Deming, WA |
| 1931/12/31 | 15:25:00 | 47.50N | 123.00W | - | 5.0 | 28.9 km WSW of Bremerton, WA | |
| 1932 | 1932/01/05 | 23:13 | 4.3 | Near Sultan, WA | |||
| 1932/07/18 | 06:01:00 | 48.00N | 121.80W | - | 5.7 | 15.6 km SE of Granite Falls, WA | |
| 1932/08/06 | 22:16:00 | 47.70N | 122.30W | - | 5.0 | 7.2 km WNW of Kirkland, WA | |
| 1933 | |||||||
| 1934 | |||||||
| 1935 | |||||||
| 1936 | 1936/07/16 | 07:07:49 | 46.00N | 118.30W | - | 6.1 | 8.1 km SSE of Walla Walla, WA |
| 1939 | 1939/11/13 | 07:45:54 | 47.40N | 122.58W | - | 6.2 | 18.7 km S of Bremerton, WA |
| 1940 | 1940/10/27 | 22:30 | 5.0 | Puget Sound | |||
| 1941 | 1941/04/07 | 09:25:00 | 48.28N | 119.58W | - | 4.5 | 7.6 km SSW of Okanogan, WA |
| 1941/12/29 | 18:37:00 | 45.53N | 122.61W | - | 5.0 | 0.0 km S of Portland, OR | |
| 1942 | 1942/11/01 | 18:50:06 | 48.00N | 116.68W | - | 5.5 | 64.2 km NE of Spokane, WA |
| 1943 | 1943/04/24 | 00:10:46 | 47.28N | 120.58W | - | 5.0 | 25.2 km WSW of Wenatchee, WA |
| 1943/11/29 | 00:43:00 | 48.40N | 122.90W | - | 5.0 | 17.0 km SSE of Friday Harbor, WA | |
| 1944 | 1944/12/07 | 04:48:00 | 46.96N | 123.88W | - | 5.0 | 5.8 km W of Aberdeen, WA |
| 1945 | 1945/01/28 | 05:06:08 | 48.23N | 122.36W | - | 5.0 | 20.0 km S of Mount Vernon, WA |
| 1945/04/29 | 20:16:17 | 47.40N | 121.68W | - | 5.7 | 12.5 km SSE of North Bend, WA | |
| 1945/04/30 | 07:45:45 | 47.40N | 121.68W | - | 5.0 | 12.5 km SSE of North Bend, WA | |
| 1945/11/12 | 04:05:00 | 48.00N | 122.50W | - | 5.0 | 22.5 km W of Everett, WA | |
| 1946 | 1946/02/15 | 03:17:47 | 47.28N | 122.90W | 25.0 | 5.8 | 28.4 km N of Olympia, WA |
| 1946/02/15 | 12:17:15 | 46.86N | 122.26W | - | 5.0 | 0.3 km NW of Eatonville, WA | |
| 1946/02/23 | 08:54:53 | 47.03N | 122.88W | - | 5.0 | 0.0 km SE of Olympia, WA | |
| 1946/06/23 | 15:13:00 | 49.80N | 125.30W | - | 7.4 | 26.3 km WNW of Courtenay, BC | |
| 1947 | |||||||
| 1948 | 1948/09/24 | 22:35:00 | 47.85N | 122.58W | - | 5.0 | 14.0 km NNE of Poulsbo, WA |
| 1949 | 1949/04/13 | 19:55:43 | 47.08N | 122.75W | 54.0 | 7.1 | 12.3 km ENE of Olympia, WA |
| 1950 | 1950/04/14 | 11:03:48 | 48.00N | 122.50W | - | 5.0 | 22.5 km W of Everett, WA |
| 1951 | |||||||
| 1952 | |||||||
| 1953 | 1953/12/16 | 04:32:12 | 45.50N | 122.68W | - | 5.0 | 7.4 km WSW of Portland, OR |
| 1954 | 1954/05/15 | 13:02:32 | 47.40N | 122.50W | - | 5.0 | 18.9 km NNW of Tacoma, WA |
| 1955 | 1955/03/26 | 06:56:51 | 48.08N | 122.00W | - | 5.0 | 3.0 km NW of Granite Falls, WA |
| 1956 | |||||||
| 1957 | 1957/01/26 | 01:16:07 | 48.28N | 122.58W | - | 5.0 | 24.2 km SW of Mount Vernon, WA |
| 1957/02/11 | 17:05:56 | 47.50N | 121.68W | - | 5.0 | 6.4 km E of North Bend, WA | |
| 1957/11/17 | 06:00:29 | 45.28N | 123.80W | - | 5.0 | 17.7 km S of Tillamook, OR | |
| 1958 | 1958/04/12 | 22:37:11 | 48.00N | 120.00W | - | 5.0 | 17.6 km N of Chelan, WA |
| 1958/10/07 | 05:07:56 | 46.70N | 124.00W | - | 5.0 | 33.8 km SSW of Aberdeen, WA | |
| 1959 | 1959/08/06 | 03:44:32 | 47.78N | 119.90W | - | 5.0 | 9.7 km ESE of Chelan, WA |
| 1959/12/12 | 06:24:17 | 48.70N | 123.30W | - | 4.5 | 28.4 km NW of Friday Harbor, WA | |
| 1960 | 1960/01/07 | 09:16:04 | 46.75N | 122.65W | - | 4.4 | 22.8 km E of Centralia, WA |
| 1960/04/11 | 06:47:35 | 47.56N | 122.25W | - | 3.7 | 6.2 km SW of Bellevue, WA | |
| 1960/09/10 | 15:06:34 | 47.70N | 123.15W | - | 4.7 | 38.1 km W of Poulsbo, WA | |
| 1960/10/11 | 11:54:45 | 46.06N | 122.15W | 7.2 | 3.9 | 14.8 km SSE of Mount St. Helens | |
| 1960/11/08 | 11:36:23 | 45.03N | 125.38W | - | 5.0 | 114.9 km WNW of Newport, OR | |
| 1961 | 1961/01/02 | 15:55:00 | 46.00N | 122.08W | - | 3.5 | 23.2 km SSE of Mount St. Helens |
| 1961/01/04 | 07:26:03 | 46.05N | 122.13W | 7.2 | 3.6 | 16.0 km SSE of Mount St. Helens | |
| 1961/02/02 | 05:50:13 | 46.70N | 122.80W | - | 4.5 | 12.4 km E of Centralia, WA | |
| 1961/05/26 | 05:51:00 | 46.05N | 122.30W | - | 3.5 | 18.2 km SSW of Mount St. Helens | |
| 1961/06/28 | 10:22:52 | 47.53N | 120.28W | - | 3.6 | 13.1 km N of Wenatchee, WA | |
| 1961/07/28 | 14:52:44 | 46.00N | 122.10W | - | 3.7 | 23.2 km SSE of Mount St. Helens | |
| 1961/08/19 | 04:56:24 | 44.70N | 122.50W | 33.0 | 4.1 | 50.2 km ESE of Salem, OR | |
| 1961/09/16 | 03:24:55 | 46.00N | 122.11W | 7.2 | 4.8 | 21.4 km SSE of Mount St. Helens | |
| 1961/09/16 | 11:45:58 | 46.00N | 122.11W | 7.2 | 4.0 | 21.0 km SSE of Mount St. Helens | |
| 1961/09/17 | 15:55:55 | 46.01N | 122.11W | 7.2 | 5.1 | 20.2 km SSE of Mount St. Helens | |
| 1961/11/07 | 01:29:08 | 45.70N | 122.85W | - | 4.7 | 26.5 km NW of Portland, OR | |
| 1961/11/07 | 21:30:00 | 45.53N | 122.61W | - | 3.9 | 0.0 km S of Portland, OR | |
| 1962 | 1962/01/15 | 05:29:13 | 47.81N | 120.20W | - | 4.0 | 15.2 km W of Chelan, WA |
| 1962/09/05 | 04:37:00 | 44.50N | 122.60W | - | 3.6 | 60.1 km SE of Salem, OR | |
| 1962/11/06 | 03:36:43 | 45.60N | 122.58W | 18.0 | 5.5 | 8.3 km NNE of Portland, OR | |
| 1962/12/31 | 20:49:30 | 47.25N | 122.06W | 2.0 | 4.7 | 8.6 km NW of Enumclaw, WA | |
| 1963 | 1963/01/24 | 21:43:09 | 47.56N | 122.01W | - | 4.6 | 10.7 km W of Fall City, WA |
| 1963/03/07 | 23:53:27 | 44.83N | 123.41W | 47.0 | 4.6 | 32.6 km WSW of Salem, OR | |
| 1963/08/13 | 15:03:58 | 47.30N | 121.60W | - | 3.6 | 18.9 km SW of Hyak, WA | |
| 1963/08/18 | 00:24:26 | 47.50N | 122.60W | - | 3.6 | 7.8 km SSE of Bremerton, WA | |
| 1963/09/08 | 15:53:32 | 48.50N | 123.00W | - | 3.5 | 3.9 km S of Friday Harbor, WA | |
| 1963/12/22 | 02:54:04 | 48.58N | 119.75W | - | 3.9 | 28.3 km NNW of Okanogan, WA | |
| 1963/12/27 | 02:36:22 | 45.76N | 123.33W | 35.0 | 4.5 | 50.8 km SW of Longview, WA | |
| 1964 | 1964/01/15 | 23:06:36 | 45.90N | 120.00W | 33.0 | 3.6 | 38.6 km SSW of Prosser, WA |
| 1964/01/26 | 21:40:43 | 46.10N | 122.40W | - | 3.9 | 19.5 km SW of Mount St. Helens | |
| 1964/04/26 | 01:42:49 | 48.70N | 120.50W | - | 4.0 | 77.6 km WNW of Okanogan, WA | |
| 1964/07/14 | 15:50:03 | 48.90N | 122.50W | - | 4.6 | 15.3 km N of Bellingham, WA | |
| 1964/07/30 | 12:45:15 | 49.20N | 122.30W | - | 3.8 | 42.2 km N of Deming, WA | |
| 1964/07/30 | 15:33:14 | 47.70N | 122.10W | - | 4.0 | 8.3 km ENE of Kirkland, WA | |
| 1964/10/01 | 12:31:24 | 45.70N | 122.80W | - | 4.1 | 23.1 km NW of Portland, OR | |
| 1964/10/15 | 14:32:37 | 47.58N | 122.08W | - | 3.9 | 7.6 km E of Bellevue, WA | |
| 1965 | 1965/04/29 | 15:28:43 | 47.40N | 122.40W | 57.0 | 6.5 | 18.3 km N of Tacoma, WA |
| 1965/08/19 | 21:02:15 | 44.58N | 118.40W | 33.0 | 4.4 | 48.4 km ENE of John Day, OR | |
| 1965/10/23 | 16:27:59 | 47.50N | 122.40W | - | 4.3 | 12.0 km SSW of Seattle, WA | |
| 1965/10/30 | 19:15:57 | 42.08N | 121.80W | 25.0 | 4.0 | 14.0 km S of Klamath Falls, OR | |
| 1965/11/07 | 16:41:47 | 44.90N | 117.00W | 5.0 | 4.3 | 67.3 km ENE of Baker, OR | |
| 1966 | 1966/07/23 | 01:57:06 | 46.90N | 119.26W | 7.4 | 3.9 | 12.8 km NW of Othello, WA |
| 1966/07/30 | 18:02:39 | 47.13N | 122.08W | - | 3.2 | 10.8 km SW of Enumclaw, WA | |
| 1966/11/01 | 07:22:52 | 47.58N | 122.30W | - | 3.5 | 2.3 km E of Seattle, WA | |
| 1966/11/06 | 10:50:51 | 47.95N | 119.30W | 6.1 | 3.6 | 22.6 km W of Grand Coulee, WA | |
| 1966/12/30 | 03:51:40 | 44.90N | 117.00W | 10.0 | 4.2 | 67.3 km ENE of Baker, OR | |
| 1966/12/30 | 10:55:04 | 42.50N | 124.80W | 33.0 | 4.3 | 96.4 km NNW of Crescent City, CA | |
| 1967 | 1967/01/18 | 06:58:21 | 47.28N | 122.56W | 22.9 | 3.3 | 12.3 km WNW of Tacoma, WA |
| 1967/02/13 | 18:32:18 | 46.13N | 119.75W | 6.9 | 3.9 | 6.7 km S of Prosser, WA | |
| 1967/03/07 | 03:51:08 | 47.83N | 122.66W | 34.0 | 3.9 | 12.0 km NNW of Poulsbo, WA | |
| 1967/05/16 | 01:01:00 | 49.00N | 122.50W | - | 3.8 | 26.4 km N of Bellingham, WA | |
| 1967/05/25 | 23:22:34 | 48.20N | 122.80W | 33.0 | 4.1 | 40.0 km SSE of Friday Harbor, WA | |
| 1967/06/06 | 17:12:57 | 48.20N | 119.08W | 33.0 | 3.6 | 29.7 km NNW of Grand Coulee, WA | |
| 1967/08/05 | 01:11:54 | 46.08N | 120.00W | 33.0 | 3.9 | 21.5 km WSW of Prosser, WA | |
| 1968 | 1968/01/27 | 08:28:23 | 45.60N | 122.60W | 34.0 | 3.8 | 8.4 km N of Portland, OR |
| 1968/05/13 | 18:52:17 | 45.58N | 122.60W | 8.0 | 3.6 | 6.8 km N of Portland, OR | |
| 1968/05/28 | 00:08:48 | 42.25N | 119.66W | 21.0 | 4.4 | 174.3 km E of Klamath Falls, OR | |
| 1968/05/28 | 00:51:03 | 42.25N | 119.76W | 33.0 | 4.1 | 166.2 km E of Klamath Falls, OR | |
| 1968/05/28 | 12:55:42 | 42.25N | 119.80W | 34.0 | 4.4 | 162.8 km E of Klamath Falls, OR | |
| 1968/05/30 | 00:35:58 | 42.31N | 119.83W | 22.0 | 5.1 | 159.8 km E of Klamath Falls, OR | |
| 1968/05/31 | 03:06:38 | 42.08N | 119.76W | 33.0 | 4.1 | 160.6 km ENE of Medicine Lakes Volc. area | |
| 1968/06/03 | 13:27:39 | 42.25N | 119.80W | 20.0 | 5.0 | 163.6 km E of Klamath Falls, OR | |
| 1968/06/04 | 02:34:14 | 42.23N | 119.86W | 25.0 | 4.6 | 157.8 km E of Klamath Falls, OR | |
| 1968/06/04 | 02:38:29 | 42.30N | 119.78W | 25.0 | 4.0 | 164.9 km E of Klamath Falls, OR | |
| 1968/06/04 | 03:35:49 | 42.31N | 119.75W | 33.0 | 4.1 | 167.5 km E of Klamath Falls, OR | |
| 1968/06/04 | 05:52:32 | 42.28N | 119.81W | 34.0 | 4.0 | 162.0 km E of Klamath Falls, OR | |
| 1968/06/04 | 06:22:17 | 42.20N | 119.81W | 26.0 | 4.4 | 161.2 km E of Klamath Falls, OR | |
| 1968/06/04 | 10:58:22 | 42.25N | 119.76W | 25.0 | 4.2 | 166.1 km E of Klamath Falls, OR | |
| 1968/06/05 | 04:51:56 | 42.21N | 119.98W | 25.0 | 4.6 | 147.9 km E of Klamath Falls, OR | |
| 1968/06/05 | 05:12:35 | 42.28N | 119.76W | 33.0 | 4.4 | 166.2 km E of Klamath Falls, OR | |
| 1968/06/05 | 07:37:45 | 42.25N | 119.90W | 33.0 | 4.0 | 154.5 km E of Klamath Falls, OR | |
| 1968/06/05 | 08:20:38 | 42.28N | 119.81W | 33.0 | 4.0 | 161.0 km E of Klamath Falls, OR | |
| 1968/06/12 | 01:46:21 | 42.11N | 119.78W | 8.0 | 4.3 | 161.3 km ENE of Medicine Lakes Volc. area | |
| 1968/06/19 | 05:51:43 | 47.20N | 122.50W | - | 4.6 | 6.5 km SW of Tacoma, WA | |
| 1968/06/21 | 20:33:27 | 42.20N | 119.65W | 23.0 | 4.3 | 175.3 km ENE of Medicine Lakes Volc. area | |
| 1968/06/22 | 09:39:52 | 42.16N | 119.71W | - | 4.3 | 168.7 km ENE of Medicine Lakes Volc. area | |
| 1968/06/24 | 11:03:17 | 42.28N | 119.83W | 33.0 | 4.2 | 160.4 km E of Klamath Falls, OR | |
| 1968/09/06 | 12:16:30 | 48.08N | 122.75W | 34.0 | 3.9 | 41.5 km NNW of Poulsbo, WA | |
| 1968/11/30 | 14:40:11 | 46.66N | 122.40W | 13.0 | 3.8 | 16.6 km NW of Morton, WA | |
| 1969 | 69/02/14 | 08:33:36 | 48.93N | 123.06W | 52.0 | 4.2 | 21.2 km S of Vancouver,BC |
| 69/10/09 | 17:07:55 | 46.75N | 121.70W | 0.0 | 4.3 | 10.3 km SSE of Mount Rainier | |
| 69/10/15 | 08:35:00 | 47.33N | 122.06W | 41.8 | 3.6 | 8.2 km SSW of Maple Valley, WA | |
| 69/11/01 | 15:44:24 | 47.88N | 121.80W | 5.0 | 3.9 | 12.7 km ENE of Monroe, WA | |
| 69/11/10 | 07:38:44 | 48.53N | 121.50W | 33.0 | 4.6 | 17.6 km E of Concrete, WA | |
| 69/11/28 | 09:51:32 | 47.40N | 122.68W | 33.0 | 3.5 | 19.3 km SSW of Bremerton, WA | |
| 1970 | 70/09/11 | 02:20:53 | 46.65N | 120.40W | 18.1 | 3.5 | 10.7 km NE of Yakima, Wa |
| 70/10/24 | 22:32:08 | 47.33N | 122.38W | 13.0 | 4.1 | 11.9 km NNE of Tacoma, WA | |
