Washington earthquakes in 1987
22 earthquakes of magnitude 2.5 or more were located in Washington in 1987. The largest: M4.3 3 km ENE of Cowiche, Washington, Dec 2, 1987.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1987 was located in Washington. Select one for its page.
Every quake of 1987
Magnitude 2.5 and up, newest first.
- 2.717 km NNW of Banks Lake South, Washington · -1 km deep
- 4.33 km ENE of Cowiche, Washington · 17 km deep
- 4.12 km ENE of Cowiche, Washington · 17 km deep
- 2.621 km S of Morton, Washington · 7 km deep
- 2.616 km NNW of Vantage, Washington · 0 km deep
- 2.62 km W of Brush Prairie, Washington · 18 km deep
- 2.85 km NE of Blyn, Washington · 55 km deep
- 2.82 km N of Port Townsend, Washington · 21 km deep
- 2.616 km WSW of Alder, Washington · 18 km deep
- 2.822 km S of Morton, Washington · 11 km deep
- 2.71 km N of Port Townsend, Washington · 22 km deep
- 2.711 km ENE of Hoodsport, Washington · 15 km deep
- 2.72 km E of Edmonds, Washington · 15 km deep
- 3.721 km W of Grayland, Washington · 37 km deep
- 3.05 km N of Naches, Washington · 16 km deep
- 2.83 km W of Chico, Washington · 20 km deep
- 2.51 km NE of Riverton, Washington · 23 km deep
- 2.61 km NE of Riverton, Washington · 25 km deep
- 2.83 km SSW of Swede Heaven, Washington · 1 km deep
- 2.83 km SW of Swede Heaven, Washington · 3 km deep
- 2.62 km WSW of Chelan, Washington · -1 km deep
- 2.75 km WNW of Edmonds, Washington · 19 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1987 | 1 | 2.7 | 5 km WNW of Edmonds, Washington |
| February 1987 | 1 | 2.6 | 2 km WSW of Chelan, Washington |
| March 1987 | 1 | 2.8 | 3 km SW of Swede Heaven, Washington |
| April 1987 | 4 | 2.8 | 3 km W of Chico, Washington |
| May 1987 | 0 | ||
| June 1987 | 3 | 3.7 | 21 km W of Grayland, Washington |
| July 1987 | 1 | 2.7 | 11 km ENE of Hoodsport, Washington |
| August 1987 | 1 | 2.7 | 1 km N of Port Townsend, Washington |
| September 1987 | 4 | 2.8 | 5 km NE of Blyn, Washington |
| October 1987 | 2 | 2.6 | 16 km NNW of Vantage, Washington |
| November 1987 | 1 | 2.6 | 21 km S of Morton, Washington |
| December 1987 | 3 | 4.3 | 3 km ENE of Cowiche, Washington |
What this means
The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.
By year
Every year the USGS catalog covers.
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- 2000s2000200120022003200420052006200720082009
- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
- 1960s1960196119621963196419651966196719681969
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- 1940s1940194119421943194419451946194719481949
- 1930s1930193119321933193419351936193719381939
- 1920s1920192119221923192419251926192719281929
- 1910s1910191119121913191419151916191719181919
- 1900s1900190119021903190419051906190719081909
Nearby
Sources
Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.