Live earthquake check

Earthquakes near Sammamish today

Updated

No M2.5+ earthquake within 100 km of Sammamish in the last 24 hours The last M2.5+ within 100 km was M2.6 31 km SE, 22 days ago.

Recent earthquakes near Sammamish

USGS recorded 2 earthquakes of magnitude 2.5 or more within 100 km of Sammamish in the past 30 days, 0 of them in the last 7 days. The most recent was M2.6 31 km SE of the city at Oct 14, 18:09 local time (22 days ago).

The average depth was about 19 km and 2 of 2 were shallow (under 70 km), which are the ones most likely to be felt at the surface.

Time (Sammamish)UTCMagnitudeDistanceDepthLocation
Oct 25, 07:15Oct 25, 14:15 UTCM2.5128 km NE3 km41 km WSW of Winthrop, Washington
Oct 14, 18:09Oct 15, 01:09 UTCM2.631 km SE19 km5 km SW of Wilderness Rim, Washington
Oct 14, 02:00Oct 14, 09:00 UTCM2.631 km SE19 km5 km WSW of Wilderness Rim, Washington

M2.5+ within 150 km, past 30 days, newest first. Times in America/Los_Angeles.

Was there an earthquake in Sammamish just now? This page checks the live USGS catalogue for quakes around Sammamish, Washington, United States and updates every few minutes.

Last 24 hours
0 M2.5+ within 100 km
Last 7 days
0 M2.5+ within 100 km
Last 30 days
2 M2.5+ within 100 km
Largest in 30 days
M2.6 31 km SE, Oct 14, 2026
Largest in past year
M4.2 55 km WSW, Sep 29, 2026
Past year count
26 M2.5+ within 150 km
Nearest in 30 days
31 km M2.6, Oct 14, 2026

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Largest earthquakes near Sammamish in the past year

The strongest earthquake within 150 km of Sammamish in the past 12 months was M4.2 on Sep 29, 2026, 55 km WSW of the city (6 km WNW of Wauna, Washington).

With 26 M2.5+ earthquakes in a year (about 2.2 a month), the area around Sammamish is active by global standards. 0 of the ten largest reached M4.5, the level at which damage near the epicentre becomes possible.

DateMagnitudeDistanceDepthLocation
Sep 29, 2026M4.255 km WSW28 km6 km WNW of Wauna, Washington
Jul 2, 2026M3.882 km NNW25 km2 km E of Oak Harbor, Washington
Feb 24, 2026M3.021 km N26 km4 km ESE of Cathcart, Washington
Jan 22, 2026M3.07.6 km E27 km2 km NNW of Ames Lake, Washington
Dec 15, 2025M2.9101 km NNE6 km4 km WSW of Concrete, Washington
Jun 8, 2026M2.982 km NNW26 km2 km ESE of Oak Harbor, Washington
Mar 11, 2026M2.968 km SW25 km2 km W of Home, Washington
May 27, 2026M2.855 km WSW26 km4 km W of Wauna, Washington
Jun 26, 2026M2.883 km ESE0 km1 km SSE of Easton, Washington
Dec 25, 2025M2.854 km WSW23 km5 km W of Gorst, Washington

Was it felt in Sammamish?

The largest nearby quake this month, M2.6 at 31 km, was probably too small or too distant to notice in Sammamish by a rough rule of thumb (an M3 is typically noticed within a few tens of km, an M5 up to a few hundred km; local ground and building type matter a lot).

USGS "Did You Feel It?" received reports for 3 of these quakes: M2.5 on Oct 25, 2026 (7 reports, max intensity 3.8); M2.6 on Oct 15, 2026 (46 reports, max intensity 2.7); M2.6 on Oct 14, 2026 (78 reports, max intensity 2.7).

If you felt shaking, you can report it to USGS; reports refine the intensity map within minutes.

Tsunami warning status

None of the earthquakes near Sammamish in the past year carried the USGS tsunami flag, which USGS sets for large quakes in oceanic regions where the tsunami warning centres issue messages.

Official tsunami warnings come from the NOAA tsunami warning centres (tsunami.gov) and national agencies; follow local authorities if you are on a coast after strong shaking.

Earthquakes around the world today

Worldwide, USGS listed 171 earthquakes of M1+ in the last 24 hours; the largest was M6.1 Fiji region.

USGS lists every magnitude in the United States but outside it coverage is complete only from about M4–4.5, so smaller local quakes reported by national agencies may be missing. Magnitudes and locations are revised for hours after an event.

Earthquakes near other cities in United States and nearby

Earthquake pages

More live data for Sammamish

Data: USGS Earthquake Hazards Program (ComCat), GeoNames (cities, CC BY 4.0).