Earthquake · reviewed by a seismologist
M 2.7md
22km SSW of San Simeon, CA
- When
- Magnitude
- M 2.7 (md)
- Depth
- 18 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- San Luis Obispo County, 79 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2868 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
- Magna, Utah 2020 M 5.7 31,000× the energy of this one
- Around the size people start to feel M 3.0 2.7× the energy of this one
- This earthquake M 2.7 about 350 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
Where
Epicentre 35.4813, -121.3178. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Luis Obispo County, CA | 79 km (49 mi) | W of here | earthquakes near San Luis Obispo County |
| Monterey County, CA | 84 km (52 mi) | S of here | earthquakes near Monterey County |
| Santa Barbara County, CA | 157 km (97 mi) | NW of here | earthquakes near Santa Barbara County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 2.1 9km W of Templeton, CA
- 2.5 11km W of Templeton, CA
- 1.5 17km SSE of Lopez Point, CA
- 1.6 11km WSW of Templeton, CA
- 1.7 25km NW of San Simeon, CA
- 1.9 25km NW of San Simeon, CA
- 1.7 4km SSE of San Simeon, CA
- 2.4 28km SSE of Lopez Point, CA
- 1.8 28km SSE of Lopez Point, CA
- 1.8 16km SSE of Lopez Point, CA
- 1.6 22km NNE of San Simeon, CA
- 1.6 20km NW of San Simeon, CA
- 2.0 33km S of Lopez Point, CA
- 1.7 19km SSE of Lopez Point, CA
- 1.9 25km NW of San Simeon, CA
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.