Earthquake · reviewed by a seismologist
M 2.1ml
Earthquake near Lone Pine, CA
No earthquake was likely felt in Lone Pine in the 24 hours to 12:52 pm PST (20:52 UTC). The last one was M 2.2, 16 km (10 mi) SE, at 9:24 pm PDT on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Lone Pine
This page: a magnitude 2.1 earthquake was recorded 31 km (19 mi) southeast of Lone Pine, CA, at 9:19 am PST on 8 March 2018 (17:19 UTC), 5.5 km deep.
USGS: 23km NE of Olancha, CA
- When
- 9:19 am PST on 8 March 2018 ()
- Where
- 31 km (19 mi) southeast of Lone Pine, CA · earthquakes near Lone Pine
- Magnitude
- M 2.1 (ml)
- Depth
- 5.5 km below the surface
- Felt
- no reports yet
- Nearest
- Inyo County, 40 km ENE
- Nearest mapped fault
- Owens Valley fault, 5 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3031 days ago
Earthquake alerts for Lone Pine, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Lone Pine, 31 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 44 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 5.8 340,000× the energy of this one
- Magna, Utah 2020 M 5.7 240,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 44 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.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:
- 5.3 27km E of Coso Junction, California · 41 km SSE of this epicentre
- 5.2 28km E of Coso Junction, California · 42 km SSE of this epicentre
- 5.2 7km ESE of Coso Junction, CA · 45 km S of this epicentre
- 5.2 18km NE of Olancha, CA · 5 km WSW of this epicentre
- 5.0 30km E of Coso Junction, California · 42 km SSE of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 36.4148, -117.8133. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Inyo County, CA | 40 km (25 mi) | ENE | earthquakes near Inyo County |
| Tulare County, CA | 89 km (55 mi) | WSW | earthquakes near Tulare County |
| Kern County, CA | 145 km (90 mi) | SW | earthquakes near Kern County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
49 earthquakes have been recorded within 50 km since this one.
- 1.9 12km E of Coso Junction, CA
- 1.7 6km NE of Lone Pine, CA
- 2.1 14km SSW of Olancha, CA
- 1.6 16km NE of Little Lake, CA
- 1.7 30km E of Coso Junction, CA
- 1.6 37km ENE of Coso Junction, CA
- 1.8 29km ENE of Olancha, CA
- 1.6 9km NE of Coso Junction, CA
- 1.6 33km ENE of Coso Junction, CA
- 1.6 16km NE of Little Lake, CA
- 1.6 7km E of Coso Junction, CA
- 1.6 8km ENE of Coso Junction, CA
- 1.6 11km S of Olancha, CA
- 1.6 16km E of Coso Junction, CA
- 1.8 39km E of Olancha, 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.