Earthquake · reviewed by a seismologist
M 1.8ml
31km WSW of Tecopa, CA
Yes. A magnitude 1.8 earthquake was recorded 31km WSW of Tecopa, CA, at 9:55 am PDT on 6 June 2019 (16:55 UTC), 2.0 km deep.
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 2.0 km below the surface
- Felt
- no reports yet
- Nearest
- San Bernardino County, 99 km SSE
- Nearest mapped fault
- Southern Death Valley fault, under 1 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 2715 days ago
Earthquake alerts for Fort Irwin, 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 14 km (9 mi) from the epicentre. 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 930,000× the energy of this one
- Magna, Utah 2020 M 5.7 660,000× the energy of this one
- Around the size people start to feel M 3.0 59× the energy of this one
- This earthquake M 1.8 about 16 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
The largest earthquake within 50 km since 2016 was M 4.1 on 2017-08-22 — about 2,800 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 35.7015, -116.5163. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Bernardino County, CA | 99 km (61 mi) | SSE | earthquakes near San Bernardino County |
| Inyo County, CA | 125 km (77 mi) | NW | earthquakes near Inyo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
47 earthquakes have been recorded within 50 km since this one.
- 1.6 48km E of Trona, CA
- 3.6 48km E of Trona, CA
- 1.6 25 km WNW of Shoshone, California
- 2.1 44km ENE of Trona, CA
- 2.5 41km NNW of Fort Irwin, CA
- 1.8 38km WSW of Tecopa, CA
- 2.4 16km E of Shoshone, CA
- 1.9 28km S of Tecopa, CA
- 1.7 43km ENE of Trona, CA
- 1.5 40km ENE of Trona, CA
- 2.0 40km WSW of Tecopa, CA
- 1.6 15 km ENE of Tecopa, California
- 1.5 18 km E of Shoshone, California
- 2.7 33km SW of Tecopa, CA
- 1.6 16km N of Fort Irwin, 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.