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Light mag. 3.7 earthquake - 91 km northwest of Arequipa, Peru, on Friday, April 23, 2021 at 08:59 GMT

Light mag. 3.7 earthquake - 91 km northwest of Arequipa, Peru, on Friday, April 23, 2021 at 08:59 GMT Light mag. 3.7 earthquake - 91 km northwest of Arequipa, Peru, on Friday, April 23, 2021 at 08:59 GMT

Light magnitude 3.7 earthquake at 11 km depth

23 Apr 09:07 UTC: First to report: EMSC after 8 minutes.

Earthquake details

Date & timeApr 23, 2021 08:59:02 UTC
Local time at epicenter
Depth11.0 km
Epicenter latitude / longitude15.66°S / 71.91°W (Provincia de Caylloma, Arequipa, Peru)
Antipode15.66°N / 108.09°E
Shaking intensityWeak shaking
Felt2 reports
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearest volcanoSabancaya (15 km / 9 mi)
Nearby towns and cities9 km (6 mi) SW of Pinchollo (pop: 579) | Show on map | Quakes nearby
33 km (21 mi) W of Chivay (pop: 4,540) | Show on map | Quakes nearby
41 km (25 mi) NNE of Lluta (Caylloma) (pop: 6,000) | Show on map | Quakes nearby
82 km (51 mi) NNW of Cono Norte (pop: 47,300) | Show on map | Quakes nearby
84 km (52 mi) NNE of El Pedregal (pop: 20,100) | Show on map | Quakes nearby
89 km (55 mi) NNW of Selva Alegre (pop: 72,700) | Show on map | Quakes nearby
91 km (57 mi) NNW of Arequipa (pop: 841,100) | Show on map | Quakes nearby
95 km (59 mi) NNW of Jacobo Hunter (pop: 46,100) | Show on map | Quakes nearby
95 km (59 mi) NNW of Ciudad Satelite (pop: 76,400) | Show on map | Quakes nearby
684 km (425 mi) SE of Lima (Lima Province) (pop: 7,737,000) | Show on map | Quakes nearby
Estimated seismic energy released2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) | about seismic energy
Show interactive Map
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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.


Seismic station: Chacalluta (AP01/C1 network) | Distance from quake: 344 km / 214 mi | Show on map | Station Info
Seismic station Chacalluta: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
40 km of Chivay, Provincia de Caylloma, Arequipa (9.9 km NW of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s
Huarmey / Weak shaking (MMI III) / complex rolling (tilting in multiple directions)

Earlier earthquakes in the same area

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