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.
Max Est. MMI
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Estimated Shaking at Nearby Cities
Full details →
| MMI Description | Nearby Cities | |||
|---|---|---|---|---|
| No intensity data available yet. | ||||
Recent Earthquakes 7
View all events →| Earthquake Location | Max MMI Description | |
|---|---|---|
|
31 km NW of Covelo, CA
2026-08-05T22:21:57.380000Z M4.5 • 5 km deep |
Weak(III)
Covelo |
Details → |
|
31 km NNW of Covelo, CA
2026-08-05T22:20:58.550000Z M4.1 • 8 km deep |
Weak(II)
Laytonville |
Details → |
|
31 km NNW of Covelo, CA
2026-08-05T00:25:25.760000Z M4.1 • 8 km deep |
Weak(II)
Covelo |
Details → |
|
8 km ESE of Cloverdale, CA
2026-07-29T02:40:06.730000Z M4.2 • 6 km deep |
Weak(III)
Cloverdale |
Details → |
|
18 km WSW of Johannesburg, CA
2026-07-13T16:40:55.190000Z M4.1 • 7 km deep |
Weak(III)
California City |
Details → |
|
2 km ESE of Frazier Park, CA
2026-07-12T10:38:04.720000Z M4.4 • 13 km deep |
Light(IV)
Lebec |
Details → |
|
11 km N of Covelo, CA
2026-07-11T01:14:37.140000Z M4.2 • 11 km deep |
Weak(III)
Covelo |
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.
Site last deployed: August 5, 2026.