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Light mag. 4.3 earthquake - Indian Ocean, 65 km south of Sibolga, North Sumatra, Indonesia, on Saturday, Apr 3, 2021 at 12:36 pm (GMT +7) -

Light mag. 4.3 earthquake - Indian Ocean, 65 km south of Sibolga, North Sumatra, Indonesia, on Saturday, Apr 3, 2021 at 12:36 pm (GMT +7) Light mag. 4.3 earthquake - Indian Ocean, 65 km south of Sibolga, North Sumatra, Indonesia, on Saturday, Apr 3, 2021 at 12:36 pm (GMT +7)

Light magnitude 4.3 earthquake at 38 km depth

3 Apr 05:42 UTC: First to report: EMSC after 6 minutes.
3 Apr 05:50: Now using data updates from BMKG
Update Sat, 3 Apr 2021, 05:51
Moderate tremor of magnitude 4.3 just reported 65 km southwest of Sibolga, Indonesia
4.3 quake 3 Apr 12:36 pm (GMT +7)
4.3 quake 3 Apr 12:36 pm (GMT +7)
Just 15 minutes ago, a 4.3-magnitude earthquake struck near Sibolga, Sumatera Utara, Indonesia. The tremor was recorded around noon on Saturday 3 April 2021 at 12:36 pm local time, at a moderately shallow depth of 38 km below the surface.
The event was filed by Indonesia's Meteorology, Climatology, and Geophysical Agency, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.2.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Sibolga (pop. 79,700) located 65 km from the epicenter, and Padangsidempuan (pop. 100,600) 75 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 data

Date & time: Apr 3, 2021 05:36:27 UTC -
Local time at epicenter: Saturday, Apr 3, 2021 at 12:36 pm (GMT +7)
Magnitude: 4.3
Depth: 38.0 km
Epicenter latitude / longitude: 1.18°N / 98.63°E (Indian Ocean, Indonesia)
Antipode: 1.18°S / 81.37°W
Nearest volcano: Sibualbuali (81 km / 50 mi)
Nearby towns and cities:
65 km (40 mi) SSW of Sibolga (pop: 79,700) --> See nearby quakes!
75 km (46 mi) WSW of Padangsidempuan (pop: 100,600) --> See nearby quakes!
155 km (96 mi) SE of Singkil (pop: 46,800) --> See nearby quakes!
158 km (98 mi) SW of Bandar (Kabupaten Labuhan Batu) (pop: 31,400) --> See nearby quakes!
168 km (105 mi) SW of Rantauprapat (pop: 103,000) --> See nearby quakes!
204 km (127 mi) SSW of Pematangsiantar (pop: 209,600) --> See nearby quakes!
229 km (142 mi) SSW of Kisaran (pop: 129,900) --> See nearby quakes!
237 km (148 mi) SSW of Tanjungbalai (pop: 142,500) --> See nearby quakes!
267 km (166 mi) S of Medan (pop: 1,751,000) --> See nearby quakes!
305 km (189 mi) NW of Padang (pop: 840,400) --> See nearby quakes!
113 km (70 mi) E of Nias Island (pop: 756,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Light Rain 28.3°C (83 F), humidity: 72%, wind: 8 m/s (15 kts) from NW
Primary data source: BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Estimated released energy: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) | about seismic energy
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If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
4.338 kmNorthern Sumatra, IndonesiaBMKG
4.486 km67 Km S of Sibolga, IndonesiaUSGS

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.
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