Earthquake · reviewed by a seismologist
M 1.6ml
1km WSW of Brawley, CA
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 7.6 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Imperial County, 19 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1510 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
How big was it?
This earthquake released about 8.1 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 1,900,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
- Around the size people start to feel M 3.0 120× the energy of this one
- This earthquake M 1.6 about 8.1 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
Epicentre 32.9738, -115.5440. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Imperial County, CA | 19 km (12 mi) | WSW of here | earthquakes near Imperial County |
| Riverside County, CA | 94 km (59 mi) | SSE of here | earthquakes near Riverside County |
| San Diego County, CA | 115 km (71 mi) | E of here | earthquakes near San Diego County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.5 6km NE of Imperial, CA
- 2.0 6km NE of Imperial, CA
- 2.2 6km WNW of Bombay Beach, CA
- 1.8 11km ENE of Ocotillo Wells, CA
- 1.7 12km SE of Bombay Beach, CA
- 1.8 7km NE of Imperial, CA
- 1.8 8km W of Holtville, CA
- 1.8 5km WSW of Niland, CA
- 2.1 4km SSW of Brawley, CA
- 1.5 10km SE of Ocotillo Wells, CA
- 2.8 10km SE of Ocotillo Wells, CA
- 1.6 10km SE of Ocotillo Wells, CA
- 1.5 10km NE of Mexicali, B.C., MX
- 1.6 12km W of Niland, CA
- 1.5 3km WNW of Calexico, 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 5.3 on 2021-06-05 — it released about 280,000 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.