Earthquake · reviewed by a seismologist
M 3.6mw
8km NNE of Round Valley, CA
- When
- Magnitude
- M 3.6 (mw)
- Depth
- 14 km below the surface
- Felt
- 62 reports · strongest reported intensity III
- Measured shaking
- intensity III (ShakeMap)
- Nearest
- Mono County, 57 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2722 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 62 people have reported feeling it to USGS.
How big was it?
This earthquake released about 3.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 45,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 2,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400× the energy of this one
- This earthquake M 3.6 about 3.8 tons of TNT
- Around the size people start to feel M 3.0 this one released 7.9× more
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 37.4750, -118.5535. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 57 km (35 mi) | SSE of here | earthquakes near Mono County |
| Esmeralda County, NV | 88 km (55 mi) | WSW of here | earthquakes near Esmeralda County |
| Madera County, CA | 110 km (68 mi) | ENE of here | earthquakes near Madera County |
| Mineral County, NV | 116 km (72 mi) | S of here | earthquakes near Mineral County |
| Mariposa County, CA | 120 km (75 mi) | E of here | earthquakes near Mariposa County |
| Fresno County, CA | 126 km (78 mi) | NE of here | earthquakes near Fresno 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.
- 2.0 3km ENE of Round Valley, CA
- 1.6 6km NE of Big Pine, CA
- 1.7 8km NNE of Big Pine, CA
- 1.5 1km NNW of Mammoth Lakes, CA
- 1.8 13km E of Mammoth Lakes, CA
- 2.1 4km NE of Round Valley, CA
- 2.2 13km E of Mammoth Lakes, CA
- 1.5 13km E of Mammoth Lakes, CA
- 1.6 13km E of Mammoth Lakes, CA
- 2.6 13km E of Mammoth Lakes, CA
- 1.6 4km E of Round Valley, CA
- 1.6 7km NNW of Round Valley, CA
- 1.6 13km ENE of Mammoth Lakes, CA
- 1.6 13km E of Mammoth Lakes, CA
- 1.9 4km WNW of Mammoth Lakes, 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-02-16 — it released about 57 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.