Earthquake Statistics for Washington

This page provides an overview of the earthquake statistics for the Washington region, including the total counts over various time periods and magnitude distributions.

Total Earthquakes

Period Total
Last 24h 2
Last Week 5
Last Month 18
Last Year 303
Total 303

Magnitude Distribution

Magnitude Count Percentage
<1 0 0%
1 190 62.7%
2 99 32.7%
3 13 4.3%
4 1 0.3%
5 0 0%
6 0 0%
7 0 0%

Biggest Earthquakes

Magnitude Date Location City
4.5 Mar 03, 2025 13:02 SAN JUAN ISLANDS REG, WASHINGTON Olga
3.9 Mar 06, 2025 00:18 OLYMPIC PENINSULA, WASHINGTON Happy Valley
3.7 Apr 06, 2025 15:15 11 km ENE of Greenwater, Washington Lester
3.4 Feb 22, 2025 11:45 SEATTLE-TACOMA AREA, WASHINGTON Auburn
3.4 Oct 29, 2025 14:01 73 km WSW of Ilwaco, Washington Pacific City (historical)
3.2 Mar 18, 2025 06:10 6 km S of Vashon, Washington Burton
3.2 Feb 27, 2025 20:07 7 km ENE of Fall City, Washington Junction
3.2 Apr 20, 2025 08:10 8 km NW of Tonasket, Washington Enterprise
3.2 Apr 13, 2025 11:01 6 km NW of Tonasket, Washington Tonasket
3.1 Apr 13, 2025 01:46 5 km NNW of Tonasket, Washington Tonasket
3.1 May 15, 2025 06:22 8 km ESE of Loomis, Washington Enterprise
3.0 Feb 18, 2025 17:54 12 km E of Greenwater, Washington Lester
3.0 Apr 16, 2025 14:23 9 km NW of Tonasket, Washington Enterprise
3.0 Dec 15, 2025 16:29 WASHINGTON Grassmere
2.9 Sep 16, 2025 01:29 7 km ENE of Marrowstone, Washington Greenbank
2.9 May 13, 2025 09:18 25 km WNW of Hoodsport, Washington Grisdale
2.9 Aug 21, 2025 08:01 1 km E of Mount Vernon, Washington Mount Vernon
2.9 Mar 22, 2025 07:17 9 km NNW of Swede Heaven, Washington Swede Heaven
2.9 Aug 21, 2025 08:01 WASHINGTON Little Mountain Estates Mobile Home Park
2.9 Aug 02, 2025 16:20 SEATTLE-TACOMA AREA, WASHINGTON Keyport