Information on the earthquake: moderate mag. 4.6 earthquake

Moderate magnitude earthquake 4.6 to 11 km deep

20 Sep 12:31 UTC: First to report: EMSC after 5 minutes.
20 Sep 12:35: Now using data updates from BMKG

Updated Mon Sep 20 2021, 12:36 PM

Moderate magnitude 4.6 earthquake strikes 95 km southwest of Pariaman, Indonesia in early evening

4.6 earthquake in South Sumatra, Indonesia, Sep 20, 2021 19:26 (GMT +7)

4.6 earthquake in South Sumatra, Indonesia, Sep 20, 2021 19:26 (GMT +7)

A magnitude 4.6 earthquake occurred in the early evening on Monday, September 20, 2021 at 7:26 p.m. local time near Pariaman, Sumatra Barat, Indonesia, as reported by the Indonesian Meteorological, Climatological and Geophysical Agency .
According to preliminary data, the earthquake was located at a shallow depth of 11 km. Shallow earthquakes are felt more strongly than deep ones because they are closer to the surface. The exact magnitude, epicenter and depth of the quake could be revised in the coming hours or minutes, as seismologists review the data and refine their calculations, or when other agencies release their report.
A second report was then released by the Euro-Mediterranean Seismological Center (EMSC), which also listed it as a 4.6 magnitude earthquake.
Cities near the epicenter where the quake could have been felt as very weak tremors include Pariaman (population 92,200) located 95 km from the epicenter.
VolcanoDiscovery will automatically update the magnitude and depth if these change and follow up if other significant earthquake news becomes available. If you are in the region, please share your experience with us through our reporting mechanism, online or through our mobile app. This will help us provide more first-hand updates to anyone in the world who is interested in learning more about this earthquake.

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Earthquake data

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Date and hour : 20 Sep 2021 12:26:28 UTC –
Local time at epicenter: Monday 20 Sep 2021 19:26 (GMT +7)
Magnitude: 4.6
Depth: 11.0 km

Latitude / longitude of epicenter: 0.81 ° S / 99.29 ° E↗ (Indian Ocean, Indonesia)
Antipode: 0.81 ° N / 80.71 ° W↗
Nearest volcano: Tandikat (120 km)

Nearby towns and villages:
95 km (59 mi) WW of Pariaman (pop: 92,200) -> See nearby earthquakes!
119 km (74 mi) west of Padang (pop: 840 400) -> See earthquakes nearby!
132 km (82 mi) WW of Bukittinggi (pop: 98,700) -> See nearby earthquakes!
152 km (94 mi) west of Solok (pop: 48,400) -> Observe the earthquakes nearby!
163 km (102 mi) WW of Payakumbuh (pop: 121,600) -> See nearby earthquakes!
188 km (117 mi) west of Sijunjung (pop: 27,800) -> Observe the earthquakes nearby!
244 km (151 mi) south of Padangsidempuan (pop: 100,600) -> See nearby earthquakes!
272 km (169 mi) to WNW of Sungai Penuh (pop: 95,900) -> Observe the earthquakes nearby!
281 km (175 mi) OSO of Pekanbaru (pop: 704,000) -> See nearby earthquakes!
289 km (180 mi) SSE of Sibolga (pop: 79,700) -> See nearby earthquakes!
284 km (177 mi) southeast of Nias Island (pop: 756,300) -> See nearby earthquakes!

Weather at the epicenter at the time of the earthquake:
Clouds covered 28.3 ° C (83 F), humidity: 72%, wind: 3 m / s (6 kts) from WSW

Main data source: BMKG (Meteorological, Climatological and Geophysical Agency of Indonesia)

Estimated energy released: 5×1011 joules (139 megawatt hours, equivalent to 120 tonnes of TNT) More info

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Data for the same earthquake reported by different agencies

Info: The more agencies report the same earthquake and publish similar data, the more confidence you can have in the data. It normally takes up to a few hours for the seismic parameters to be calculated with near optimum accuracy.

Mag. Depth Site Source
4.6 11 km South Sumatra, Indonesia BMKG

Previous earthquakes in the same region

Click here to search our database for previous earthquakes in the same area since 1900!

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