7 km SSW of Wilkerson, California

2017-05-12 23:59 UTC · 14 km deep · released about 49 lb of TNT

Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 2017-05-12 23:59 UTC
Magnitude: M 2.1 (md)
Depth: 14 km below the surface
Felt: no reports yet
Nearest: Mono County, 88 km NNW
Status: Reviewed by a seismologist

USGS · last changed by USGS 3009 days ago · we first saw it 3009 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
Magna, Utah 2020 M 5.7 220,000× the energy of this one
Around the size people start to feel M 3.0 19× the energy of this one
This earthquake M 2.1 about 49 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

Map loads when it scrolls into view

Epicentre 37.2147, -118.4122. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Mono County, CA	88 km (55 mi)	SSE of here	earthquakes near Mono County
Esmeralda County, NV	93 km (58 mi)	SW of here	earthquakes near Esmeralda County
Tulare County, CA	114 km (71 mi)	NNE of here	earthquakes near Tulare County
Inyo County, CA	115 km (72 mi)	NW of here	earthquakes near Inyo County
Madera County, CA	118 km (74 mi)	E of here	earthquakes near Madera County
Fresno County, CA	121 km (75 mi)	ENE of here	earthquakes near Fresno County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

17 earthquakes have been recorded within 50 km since this one.

1.6 10 km SW of Aspen Springs, California 20:00 UTC
1.7 8 km WSW of Aspen Springs, California 16:19 UTC
1.5 2 km SW of Mesa, California 08:56 UTC
1.6 9 km WSW of Aspen Springs, California 05:43 UTC
1.8 9 km SSW of Wilkerson, California 18:39 UTC
1.7 10 km NE of Mesa, California 17:29 UTC
2.2 26 km WSW of Wilkerson, California 22:25 UTC
1.6 13 km WSW of Aspen Springs, California 22:51 UTC
1.7 3 km NNW of West Bishop, California 05:48 UTC
1.7 2 km NNW of West Bishop, California 05:47 UTC
1.6 14 km SW of Aspen Springs, California 08:12 UTC
1.9 14 km SW of Aspen Springs, California 07:30 UTC
1.6 13 km N of Dixon Lane-Meadow Creek, California 03:06 UTC
1.9 14 km SW of Aspen Springs, California 08:43 UTC
1.8 36 km ESE of Big Pine, California 06:34 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 22:55 UTC. 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 8,800 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.