Earthquake · reviewed by a seismologist
M 1.6ml
13km S of Primo Tapia, B.C., MX
Yes. A magnitude 1.6 earthquake was recorded 13km S of Primo Tapia, B.C., MX, 82 km (51 mi) SSE of San Diego, CA, at 3:05 pm PST on 5 March 2020 (23:05 UTC), 16 km deep.
82 km (51 mi) SSE of San Diego, CA · 59 km (37 mi) S of Chula Vista, CA
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 103 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2443 days ago
Earthquake alerts for Imperial Beach, 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 it was probably too small to be felt, even directly above it. 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.
Where
Epicentre 32.1055, -116.9027. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 103 km (64 mi) | N | earthquakes near San Diego 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 36km NNE of El Sauzal, B.C., MX
- 1.7 24km W of Rosarito, B.C., MX
- 1.6 32km E of Primo Tapia, B.C., MX
- 2.6 41km W of El Sauzal, B.C., MX
- 2.6 10km SE of Tijuana, B.C., MX
- 2.0 36km NNE of Ensenada, B.C., MX
- 1.7 20km NNE of Primo Tapia, B.C., MX
- 1.7 21km NNE of Primo Tapia, B.C., MX
- 1.6 21km NNE of Primo Tapia, B.C., MX
- 2.1 22km E of Primo Tapia, B.C., MX
- 3.2 28km W of El Sauzal, B.C., MX
- 3.0 45km SW of Primo Tapia, B.C., MX
- 1.9 24km ESE of Primo Tapia, B.C., MX
- 2.0 13km NW of Rosarito, B.C., MX
- 1.9 24km N of El Sauzal, B.C., MX
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.