Earthquake · reviewed by a seismologist
M 2.3ml
23km WSW of Delta, B.C., MX
Yes. A magnitude 2.3 earthquake was recorded 23km WSW of Delta, B.C., MX, 89 km (55 mi) WSW of Yuma, AZ, at 2:43 am PDT on 24 August 2017 (09:43 UTC), 16 km deep.
89 km (55 mi) WSW of Yuma, AZ
- When
- Magnitude
- M 2.3 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- Imperial County, 83 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3304 days ago
Earthquake alerts for Calexico, 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 10 km (6 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.
How big was it?
This earthquake released about 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
- Magna, Utah 2020 M 5.7 130,000× the energy of this one
- Around the size people start to feel M 3.0 12× the energy of this one
- This earthquake M 2.3 about 79 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 32.2985, -115.4335. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Imperial County, CA | 83 km (51 mi) | N | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 1.9 8km NW of Delta, B.C., MX
- 1.9 12km SE of Puebla, B.C., MX
- 1.6 20km W of Delta, B.C., MX
- 1.8 7km E of Puebla, B.C., MX
- 2.3 16km SSW of Alberto Oviedo Mota, B.C., MX
- 2.7 10km WNW of Alberto Oviedo Mota, B.C., MX
- 2.2 5km NNW of Delta, B.C., MX
- 2.2 12km SSE of Alberto Oviedo Mota, B.C., MX
- 2.0 19km WNW of Progreso, B.C., MX
- 1.9 19km WNW of Progreso, B.C., MX
- 2.5 6km N of Delta, B.C., MX
- 1.6 12km WNW of Progreso, B.C., MX
- 2.1 8km SW of Progreso, B.C., MX
- 2.8 9km SSE of Alberto Oviedo Mota, B.C., MX
- 1.8 12km SW of Puebla, 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.