Earthquake · reviewed by a seismologist
M 1.8ml
7km ESE of Tijuana, B.C., MX
Yes. A magnitude 1.8 earthquake was recorded 7km ESE of Tijuana, B.C., MX, 39 km (24 mi) SSE of San Diego, CA, at 5:01 am PDT on 30 June 2023 (12:01 UTC), 13 km deep. 1 person has reported feeling it to USGS.
39 km (24 mi) SSE of San Diego, CA · 15 km (9 mi) SSE of Chula Vista, CA
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 13 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- San Diego County, 60 km NNE
- Nearest mapped fault
- Newport-Inglewood-Rose Canyon fault, 19 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 1231 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, people at rest would likely notice it out to about 4 km (2 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.
Earthquakes near other towns within 30 km: Imperial Beach, Bonita, Chula Vista, La Presa, National City, Jamul.
How big was it?
This earthquake released about 17 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 5.8 870,000× the energy of this one
- Magna, Utah 2020 M 5.7 620,000× the energy of this one
- Around the size people start to feel M 3.0 55× the energy of this one
- This earthquake M 1.8 about 17 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 32.5028, -116.9533. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 60 km (37 mi) | NNE | earthquakes near San Diego County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
41 earthquakes have been recorded within 50 km since this one.
- 1.6 5 km SE of Bostonia, CA
- 1.7 4 km ENE of Rancho San Diego, CA
- 1.9 8 km ESE of Tijuana, B.C., MX
- 2.8 17 km SW of Coronado, CA
- 2.0 7 km W of Primo Tapia, B.C., MX
- 1.7 4 km NE of Rancho San Diego, CA
- 2.1 14 km SE of Tijuana, B.C., MX
- 1.9 25 km N of El Sauzal, B.C., MX
- 1.8 19 km ESE of Tijuana, B.C., MX
- 1.9 10 km ESE of Alpine, CA
- 2.6 28 km E of Primo Tapia, B.C., MX
- 1.5 5 km NE of Rancho San Diego, CA
- 1.5 6 km NNW of Lakeside, CA
- 1.9 15 km NW of Rosarito, B.C., MX
- 1.5 5 km NE of Rancho San Diego, 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.