Minor mag. 2.8 earthquake - 15 km north of Sibolga, North Sumatra, Indonesia, on Sunday, Nov 28, 2021 at 3:56 am (GMT +7) -
Quake Data | Interactive map | User Reports | Earlier quakes here | Quakes in Indonesia | North Sumatra


Minor magnitude 2.8 earthquake at 96 km depth
28 Nov 05:25 UTC: First to report: BMKG after 8 hours.
28 Nov 10:50: Magnitude recalculated from 2.7 to 2.8. Hypocenter depth recalculated from 77.0 to 96.0 km (from 48 to 60 mi). Epicenter location corrected by 4 km (2.5 mi) towards NNE.
28 Nov 10:50: Magnitude recalculated from 2.7 to 2.8. Hypocenter depth recalculated from 77.0 to 96.0 km (from 48 to 60 mi). Epicenter location corrected by 4 km (2.5 mi) towards NNE.
Local time at epicenter: Sunday, Nov 28, 2021 at 3:56 am (GMT +7)
Magnitude: 2.8
Depth: 96.0 km
Epicenter latitude / longitude: 1.87°N / 98.81°E

Antipode: 1.87°S / 81.19°W
Nearest volcano: Toba (52 km / 32 mi)
Nearby towns and cities:
15 km (9 mi) NNE of Sibolga (pop: 79,700) --> See nearby quakes!
75 km (47 mi) NW of Padangsidempuan (pop: 100,600) --> See nearby quakes!
87 km (54 mi) S of Tomok Bolon (Kabupaten Samosir) (pop: 10,000) --> See nearby quakes!
89 km (55 mi) S of Parapat (Kabupaten Simalungun) (pop: 10,000) --> See nearby quakes!
191 km (119 mi) S of Medan (pop: 1,751,000) --> See nearby quakes!
Primary data source: BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Estimated released energy: 1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) | about seismic energy
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.
Mag. | Depth | Location | Source |
2.8 | 96 km | Northern Sumatra, Indonesia | BMKG |
User reports for this quake
At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!