Seismic Intensity Estimates

Covering California, Nevada, Oregon, and northern Mexico.

The goal of the Intensity Lab is to change how we talk about earthquakes, moving past a single magnitude number to focus on site-specific seismic intensities, which can provide the essential information needed to make smart decisions after the shaking stops.

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Latest Event

26 km SSW of Alamo, Nevada

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M4.7 • 6 km deep • Full details →

Max Est. MMI

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Estimated Shaking at Nearby Cities Full details →

MMI	Shaking Level	Nearby Cities	Dist (km)	Dist (mi)
No intensity data available yet.

Recent Earthquakes 10

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Earthquake Location	Max Est. MMI
26 km SSW of Alamo, Nevada 2026-04-29T15:06:12.116000Z M4.7 • 6 km deep	III Weak Alamo	Details →
55 km W of Petrolia, CA 2026-04-25T07:38:28.280000Z M4.0 • 7 km deep	II Weak Ferndale	Details →
19 km SE of Silver Springs, Nevada 2026-04-22T17:23:37.085000Z M4.8 • 7 km deep	IV Light Silver Springs	Details →
57 km W of Petrolia, CA 2026-04-20T10:41:31.900000Z M4.7 • 2 km deep	II Weak Ferndale	Details →
20 km SE of Silver Springs, Nevada 2026-04-19T14:39:16.331000Z M4.5 • 10 km deep	IV Light Silver Springs	Details →
16 km SE of Silver Springs, Nevada 2026-04-19T14:39:16.317000Z M4.7 • 13 km deep	IV Light Silver Springs	Details →
18 km SE of Silver Springs, Nevada 2026-04-19T12:43:31.056000Z M4.2 • 8 km deep	III Weak Silver Springs	Details →
20 km ESE of Silver Springs, Nevada 2026-04-14T01:29:12.123000Z M5.5 • 13 km deep	V Moderate Silver Springs	Details →
20 km ESE of Silver Springs, Nevada 2026-04-14T01:29:11.454000Z M5.7 • 10 km deep	V Moderate Silver Springs	Details →
1 km SE of Boulder Creek, CA 2026-04-02T08:41:25.520000Z M4.6 • 10 km deep	V Moderate Bonny Doon	Details →

Showing M4.0+ events only. View all 16 events →

MMI values on this site are Instrumental Intensity — derived from recorded ground motion via USGS ShakeMap.