quarry blast · reviewed by a seismologist
M 1.6ml
16km WSW of Tecate, B.C., MX
No: USGS classifies this as a quarry blast, not an earthquake. A magnitude 1.6 quarry blast was recorded 16km WSW of Tecate, B.C., MX, 50 km (31 mi) SE of San Diego, CA, at 3:59 pm PST on 14 November 2019 (23:59 UTC), less than 1 km deep.
50 km (31 mi) SE of San Diego, CA · 27 km (17 mi) ESE of Chula Vista, CA
- When
- Magnitude
- M 1.6 (ml)
- Depth
- -0.7 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 59 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2554 days ago
Earthquake alerts for Jamul, 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 11 km (7 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: Jamul.
USGS catalogues this as quarry blast, not an earthquake.
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 32.4902, -116.7715. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 59 km (37 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
36 earthquakes have been recorded within 50 km since this one.
- 2.0 9km SSW of Primo Tapia, B.C., MX
- 2.1 15km SSE of Primo Tapia, B.C., MX
- 1.6 5km ESE of Bonita, CA
- 1.8 14km ESE of Primo Tapia, B.C., MX
- 1.5 6km SE of Bonita, CA
- 1.5 6km ESE of Chula Vista, CA
- 1.6 5km NE of Rancho San Diego, CA
- 1.7 41km SSE of Tecate, B.C., MX
- 1.7 22km NNE of Primo Tapia, B.C., MX
- 1.6 2 km ENE of Rancho San Diego, CA
- 1.6 6km NNW of Lakeside, CA
- 1.7 32km NNE of El Sauzal, B.C., MX
- 1.6 6km NNW of Lakeside, CA
- 1.6 6km NNW of Lakeside, CA
- 2.4 20km NNE 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.