Minor mag. 1.5 earthquake - 7km W of Holtville, CA, USA, on Tuesday, 23 Feb 2021 7:11 pm (GMT -8) -
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Minor magnitude 1.5 earthquake at 13 km depth
24 Feb 03:14 UTC: First to report: USGS after 3 minutes.
24 Feb 03:15: Magnitude recalculated from 1.7 to 1.6. Hypocenter depth recalculated from 15.0 to 15.6 km (from 9.3 to 9.7 mi). Epicenter location corrected by 1.3 km (0.8 mi) towards SSE.
24 Feb 05:22: Magnitude recalculated from 1.6 to 1.5. Hypocenter depth recalculated from 15.6 to 12.6 km (from 9.7 to 7.8 mi). Epicenter location corrected by 7.5 km (4.6 mi) towards NW.
24 Feb 03:15: Magnitude recalculated from 1.7 to 1.6. Hypocenter depth recalculated from 15.0 to 15.6 km (from 9.3 to 9.7 mi). Epicenter location corrected by 1.3 km (0.8 mi) towards SSE.
24 Feb 05:22: Magnitude recalculated from 1.6 to 1.5. Hypocenter depth recalculated from 15.6 to 12.6 km (from 9.7 to 7.8 mi). Epicenter location corrected by 7.5 km (4.6 mi) towards NW.
Date & time: 24 Feb 2021 03:11:21 UTC -
Local time at epicenter: Tuesday, 23 Feb 2021 7:11 pm (GMT -8)
Magnitude: 1.5
Depth: 12.6 km
Epicenter latitude / longitude: 32.80417°N / 115.4525°W
(California, United States)Nearest volcano: Salton Buttes (53 km / 33 mi)
Nearby towns and cities:
7 km (4 mi) W of Holtville (pop: 6,400) --> See nearby quakes!
10 km (6 mi) E of El Centro (pop: 44,000) --> See nearby quakes!
12 km (7 mi) ESE of Imperial (pop: 17,100) --> See nearby quakes!
15 km (9 mi) NNE of Calexico (pop: 40,100) --> See nearby quakes!
20 km (12 mi) N of Mexicali (Baja California, Mexico) (pop: 689,800) --> See nearby quakes!
21 km (13 mi) SSE of Brawley (Imperial County) (pop: 25,900) --> See nearby quakes!
22 km (14 mi) NNE of Santa Isabel (Baja California, Mexico) (pop: 29,300) --> See nearby quakes!
22 km (14 mi) E of Seeley (Imperial County) (pop: 1,740) --> See nearby quakes!
28 km (17 mi) NNW of Puebla (Baja California, Mexico) (pop: 15,200) --> See nearby quakes!
36 km (23 mi) S of Calipatria (pop: 7,420) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
19.7°C (67 F), humidity: 21%, wind: 2 m/s (3 kts) from S
Primary data source: USGS (United States Geological Survey)Clear Sky
19.7°C (67 F), humidity: 21%, wind: 2 m/s (3 kts) from SEstimated released energy: 1.1 x 107 joules (3.12 kilowatt hours) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Magnitude | Depth | Location | Source |
| 1.5 | 13 km | 7km W of Holtville, CA, USA | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 1.5, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
