Earthquake · reviewed by a seismologist
M 1.6ml
18km E of Tijuana, B.C., MX
Yes. A magnitude 1.6 earthquake was recorded 18km E of Tijuana, B.C., MX, 45 km (28 mi) SE of San Diego, CA, at 7:25 pm PDT on 7 August 2017 (02:25 UTC), 16 km deep.
45 km (28 mi) SE of San Diego, CA · 23 km (14 mi) SE of Chula Vista, CA
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 58 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3304 days ago
Earthquake alerts for Jamul, CA
Get a notification in this browser when USGS records an earthquake near Jamul, 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 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.
Earthquakes near other towns within 30 km: Jamul, Bonita, La Presa, Imperial Beach, Chula Vista, Rancho San Diego.
How big was it?
This earthquake released about 7.8 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 1,400,000× 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 7.8 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 32.5012, -116.8258. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 58 km (36 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
40 earthquakes have been recorded within 50 km since this one.
- 1.6 25km ENE of Primo Tapia, B.C., MX
- 1.7 6km N of Lakeside, CA
- 1.6 6km SE of Bostonia, CA
- 1.7 7km NNW of Lakeside, CA
- 1.5 5km NE of Rancho San Diego, CA
- 2.4 31km E of Primo Tapia, B.C., MX
- 1.7 6km NNW of Lakeside, CA
- 1.6 5km NE of Rancho San Diego, CA
- 1.6 14km WSW of Coronado, CA
- 1.8 14km NE of Campo, CA
- 1.6 6km NNW of Lakeside, CA
- 1.6 31km E of Primo Tapia, B.C., MX
- 1.7 5km SW of San Ysidro, CA
- 1.6 13km NNW of Tecate, B.C., MX
- 1.7 6km NNW of Lakeside, 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.