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Strong mag. 5.3 earthquake - 21 km north of Tocache, Region de San Martin, Peru, on Saturday, Dec 4, 2021 at 6:40 am (GMT -5) -

Strong mag. 5.3 earthquake - 21 km north of Tocache, Region de San Martin, Peru, on Saturday, Dec 4, 2021 at 6:40 am (GMT -5) Strong mag. 5.3 earthquake - 21 km north of Tocache, Region de San Martin, Peru, on Saturday, Dec 4, 2021 at 6:40 am (GMT -5)

Strong magnitude 5.3 earthquake at 10 km depth

4 Dec 11:44 UTC: First to report: IGEPN after 3 minutes.
Update Sat, 4 Dec 2021, 11:48

Significant magnitude 5.3 quake hits 21 km north of Tocache, Peru early morning

5.3 quake 4 Dec 6:40 am (GMT -5)
5.3 quake 4 Dec 6:40 am (GMT -5)
An earthquake of magnitude 5.3 occurred only 7 minutes ago 21 km north of Tocache, Peru, the Institute of Geophysics of the National Polytechnic School in Quito (IGEPN) reported.
The quake hit at a shallow depth of 10 km beneath the epicenter near Tocache, Region de San Martin, Peru, early morning on Saturday, December 4th, 2021, at 6:40 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Polvora (pop. 780) located 20 km from the epicenter, Tocache (pop. 29,000) 21 km away, and Uchiza (pop. 17,700) 51 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Huicungo (pop. 6,800) located 81 km from the epicenter, Juanjui (pop. 37,700) 94 km away, and Bellavista (pop. 15,200) 105 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeDec 4, 2021 11:40:58 UTC -
Local time at epicenterSaturday, Dec 4, 2021 at 6:40 am (GMT -5)
Depth10.0 km
Epicenter latitude / longitude8°S / 76.52°W (Tocache, Region de San Martin, Peru)
Antipode8°N / 103.48°E
Shaking intensityModerate shaking near epicenter
Felt1 report
Primary data sourceIGEPN (Institute of Geophysics of the National Polytechnic School in Quito)
Nearby towns and cities20 km (12 mi) ESE of Polvora (San Martín) (pop: 776) | Show on map | Quakes nearby
21 km (13 mi) N of Tocache (San Martín) (pop: 29,000) | Show on map | Quakes nearby
51 km (32 mi) N of Uchiza (Provincia de Tocache, San Martín) (pop: 17,700) | Show on map | Quakes nearby
81 km (50 mi) SSE of Huicungo (Mariscal Cáceres, San Martín) (pop: 6,760) | Show on map | Quakes nearby
94 km (59 mi) SSE of Juanjui (Mariscal Cáceres, San Martín) (pop: 37,700) | Show on map | Quakes nearby
105 km (65 mi) S of Bellavista (San Martín) (pop: 15,200) | Show on map | Quakes nearby
155 km (96 mi) NNW of Tingo Maria (Huanuco) (pop: 53,200) | Show on map | Quakes nearby
169 km (105 mi) S of La Banda (San Martín) (pop: 24,900) | Show on map | Quakes nearby
203 km (126 mi) NNE of Huaraz (Ancash) (pop: 86,900) | Show on map | Quakes nearby
453 km (282 mi) N of Lima (Lima Province) (pop: 7,737,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 17.9°C (64 F), humidity: 94%, wind: 0 m/s (0 kts) from SSW
Estimated seismic energy released5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 tons of TNT) | about seismic energy
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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.
5.310 kmCentral Peru, A 20.54 Km De Tocache NuevoIGEPN


Seismic station: Otavalo, Ecuador (OTAV/IU network) | Distance from quake: 941 km / 584 mi | Show on map | Station Info
Seismic station Otavalo, Ecuador: 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.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
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Lima, Barranco / Very weak shaking (MMI II) / single lateral shake / 10-15 s
Rio Branco / not felt : Not detected (reported through our app)  


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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