Live record · within 100 km (62 mi) · M2.5+

Earthquakes near City of Sammamish

In the last 30 days there were 3 earthquakes of magnitude 2.5 or larger within 100 km (62 mi) of City of Sammamish, Washington, and 0 in the last 24 hours. The strongest was a magnitude 4.2, 56 km (35 mi) WSW of City of Sammamish, on 2026-09-29.

Earthquakes M2.5+ within 100 km

Last 24 hours0
Last 7 days0
Last 30 days3
Last year16
Last 5 years86

M1+ in the last 7 days: 12. Methodology

Fig. 1M2.5+ within 100 km of City of Sammamish, last 30 days

01 — History

Earthquakes per month near City of Sammamish

Fig. 2Earthquakes per month, M2.5+ within 100 km

38 earthquakes of magnitude 2.5 or larger within 100 km of City of Sammamish in the last 24 months. The busiest month was Feb 2025, with 4.

02 — Recent

Recent earthquakes near City of Sammamish

Magnitude 2.5+ earthquakes within 100 km of City of Sammamish in the last 30 days
Magnitude	Location	Distance	Depth	Time
2.6	5 km SW of Wilderness Rim, Washington	26 km / 16 mi	depth 19 km	Oct 15, 01:09 UTC
2.6	5 km WSW of Wilderness Rim, Washington	26 km / 16 mi	depth 19 km	Oct 14, 09:00 UTC
4.2	6 km WNW of Wauna, Washington	56 km / 35 mi	depth 28 km	Sep 29, 21:05 UTC

03 — Questions

Earthquakes in City of Sammamish, answered

Was there an earthquake in City of Sammamish today?

No earthquake of magnitude 2.5 or larger was recorded within 100 km of City of Sammamish in the last 24 hours. Smaller ones can still occur. The home page lists them when you choose “All” magnitudes.

Are earthquakes common near City of Sammamish?

Over the last five years there were 86 earthquakes of magnitude 2.5 or larger within 100 km of City of Sammamish, an average of 17 a year. 16 occurred in the last 12 months. That is close to the five-year average.

What was the largest earthquake near City of Sammamish in five years?

A magnitude 4.3 on Oct 9, 2023, 02:21 UTC, 71 km (44 mi) NW of City of Sammamish, at a depth of 55 km. See this earthquake

Counts describe past activity within 100 km of the city centre. They are not a forecast or a risk assessment. Data updated Oct 26, 2026, 18:23 UTC. Source: USGS.

04 — Embed

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