Earthquake · reviewed by a seismologist
M 1.6ml
37km WSW of Tecopa, CA
Yes. A magnitude 1.6 earthquake was recorded 37km WSW of Tecopa, CA, at 1:27 pm PST on 7 March 2019 (21:27 UTC), 2.9 km deep. 1 person has reported feeling it to USGS.
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 2.9 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- San Bernardino County, 105 km SSE
- Nearest mapped fault
- Southern Death Valley fault, 4 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 2807 days ago
Earthquake alerts for Fort Irwin, CA
Get a notification in this browser when USGS records an earthquake near Fort Irwin, CA. No account or email needed.
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 10 km (6 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 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
- Around the size people start to feel M 3.0 140× the energy of this one
- This earthquake M 1.6 about 6.6 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 4.2 on 2018-12-05 — about 9,100 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 6.0 Death Valley area, California · 45 km NW of this epicentre
- 5.9 Death Valley area, California · 45 km NW 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 35.7355, -116.6148. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Bernardino County, CA | 105 km (65 mi) | SSE | earthquakes near San Bernardino County |
| Inyo County, CA | 116 km (72 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.
- 1.5 40km ENE of Trona, CA
- 2.0 40km WSW of Tecopa, CA
- 2.7 33km SW of Tecopa, CA
- 2.7 25km ENE of Trona, CA
- 1.6 16km N of Fort Irwin, CA
- 2.5 37km WSW of Tecopa, CA
- 2.2 10km NW of Fort Irwin, CA
- 1.6 30 km N of Fort Irwin, California
- 1.5 31 km ENE of Searles Valley, California
- 1.8 17 km WSW of Tecopa, California
- 1.5 37km NNW of Fort Irwin, CA
- 1.8 42km WSW of Tecopa, CA
- 2.6 38km NE of Trona, CA
- 2.4 38km NE of Trona, CA
- 3.1 39km NE of Trona, 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.