Major magnitude. 7.3 earthquake - Northern Peru on Sunday, 18 December 1921 at 15:29 (GMT)

Major magnitude. 7.3 earthquake  - Northern Peru on Sunday, 18 December 1921 at 15:29 (GMT)

Major magnitude 7.3 earthquake at 540 km depth

Date & time: 18 Dec 1921 03:29:28 UTC###AGESTRINGCOPY###
Magnitude: 7.3
Depth: 540.0 km
Epicenter latitude / longitude: 3.827°S / 71.322°W (Peru)
Nearby towns and cities:
156 km (97 mi) WNW of Benjamin Constant (Brazil) (pop: 14,000)
159 km (99 mi) WNW of Ramón Castilla (pop: 5,500)
215 km (133 mi) E of Iquitos (Maynas, Loreto) (pop: 437,600)
276 km (172 mi) W of São Paulo de Olivença (State of Amazonas, Brazil) (pop: 11,800)
449 km (279 mi) NNE of Cruzeiro do Sul (Acre, Brazil) (pop: 79,800)
580 km (360 mi) ENE of Yurimaguas (Provincia de Alto Amazonas, Loreto) (pop: 41,800)
620 km (385 mi) NE of Pucallpa (Coronel Portillo, Ucayali) (pop: 310,800)
1109 km (689 mi) NE of Lima (Municipalidad Metropolitana de Lima) (pop: 7,737,000)
Primary data source: USGS
Estimated released energy: 5.6 x 1015 joules (1562 gigawatt hours, equivalent to 1.3 x 106 tons of TNT or 84 atomic bombs!) [learn more]
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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.
M 7.3540 kmnorthern PeruUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks of the 7.3 quake Northern Peru 18 December 15:29 UTC

More info
Recorded aftershocks, latest first (1 quakes):

Earlier earthquakes in the same area since 1900

Major magnitude. 7.3 earthquake - Northern Peru on Sunday, 18 December 1921 at 15:29 (GMT)
    Hint: Click on Date/Time to show latest first
  • Date / time UTC
    | Mag |
    | Details
  • 28 Sep 1906 15:24
    | 6.8 |
    100km / 62mi
    114 years ago
    661km / 411mi
    | Northern Peru

Map of earlier quakes

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