Earthquake · reviewed by a seismologist
M 1.7ml
17km WSW of Delta, B.C., MX
Yes. A magnitude 1.7 earthquake was recorded 17km WSW of Delta, B.C., MX, 82 km (51 mi) WSW of Yuma, AZ, at 7:59 am PST on 26 February 2019 (15:59 UTC), less than 1 km deep. 1 person has reported feeling it to USGS.
82 km (51 mi) WSW of Yuma, AZ
- When
- Magnitude
- M 1.7 (ml)
- Depth
- 0.4 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Imperial County, 81 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2816 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 12 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.
How big was it?
This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
- Around the size people start to feel M 3.0 92× the energy of this one
- This earthquake M 1.7 about 10 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.8 on 2018-11-19 — about 50,000 times the energy of this one.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 32.3152, -115.3648. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Imperial County, CA | 81 km (50 mi) | N | earthquakes near Imperial 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.
- 2.2 10km SW of Hermosillo, B.C., MX
- 2.4 13km WNW of Alberto Oviedo Mota, B.C., MX
- 2.5 17km SW of Puebla, B.C., MX
- 2.0 6km NW of Delta, B.C., MX
- 2.5 6km NNW of Delta, B.C., MX
- 2.2 10km S of Alberto Oviedo Mota, B.C., MX
- 2.9 11km SW of Estacion Coahuila, B.C., MX
- 3.3 10km SW of Estacion Coahuila, B.C., MX
- 3.3 10km SSW of Estacion Coahuila, B.C., MX
- 2.7 10km SSW of Estacion Coahuila, B.C., MX
- 3.3 10km SSW of Estacion Coahuila, B.C., MX
- 3.0 10km SSW of Estacion Coahuila, B.C., MX
- 2.2 5km WSW of Guadalupe Victoria, B.C., MX
- 2.1 3km SSW of Heber, CA
- 1.9 4km S of Heber, 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.