Strong Mag. 6.0 Earthquake - Banda Sea, 163 km South of Ambon City, Maluku, Indonesia, on Sunday, Apr 4, 2021 03:42 am (Jayapura Time)

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Strong mag. 6.0 earthquake - Banda Sea, 163 km south of Ambon City, Maluku, Indonesia, on Sunday, 4 Apr 2021 3:42 am (GMT +9)

Strong mag. 6.0 Earthquake - Banda Sea, 163 km south of Ambon City, Maluku, Indonesia, on Sunday, Apr 4, 2021 03:42 am (Jayapura time)

Strong magnitude 6.0 earthquake at 349 km depth

3 Apr 18:48 UTC: First to report: GFZ after 6 minutes.
3 Apr 18:49: Magnitude recalculated from 5.5 to 5.6. Hypocenter depth recalculated from 343.0 to 348.0 km (from 213 to 216 mi). Epicenter location corrected by 6.7 km (4.1 mi) towards N.
3 Apr 18:50: Now using data updates from BMKG
3 Apr 19:00: Magnitude recalculated from 5.9 to 6.0. Hypocenter depth recalculated from 334.0 to 349.0 km (from 208 to 217 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards S.

Earthquake details

Date & time	Apr 3, 2021 18:42:02 UTC
Local time at epicenter	Sunday, Apr 4, 2021 03:42 am (Asia/Jayapura GMT +9)
Status	Confirmed
Magnitude	6
Depth	349.0 km
Epicenter latitude / longitude	5.16°S / 128.19°E Banda Sea, Indonesia
Antipode	5.16°N / 51.81°W
Shaking intensity	Very weak shaking
Felt	1 report
Primary data source	BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Nearest volcano	Banda Api (199 km / 124 mi)
Weather at epicenter at time of quake	Overcast Clouds 29°C (84 F), humidity: 74%, wind: 7 m/s (13 kts) from NNE
Estimated seismic energy released	6.3 x 10¹³ joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 atomic bombs!) \| about seismic energy

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Nearby places

Distance	Place	Max. shaking intensity(*)	Region	Country
163 km (101 mi) N of epicenter	Ambon City (pop: 355,600)	III Weak	Maluku	Indonesia
218 km (135 mi) NNE of epicenter	Amahai (pop: 47,700)	III Weak	Maluku	Indonesia
396 km (246 mi) SSW of epicenter	Lospalos (pop: 17,200)	III Weak	Municipio de Lautem	East Timor
416 km (258 mi) SSW of epicenter	Baucau (pop: 16,000)	III Weak	Baucau	East Timor
436 km (271 mi) SSW of epicenter	Venilale (pop: 16,000)	III Weak	Baucau	East Timor
476 km (296 mi) SW of epicenter	Delhi (pop: 150,000)	III Weak	Aveiro, Dili	East Timor
491 km (305 mi) SW of epicenter	Aileu (pop: 17,400)	III Weak	Aileu	East Timor
494 km (307 mi) SW of epicenter	Likisa (pop: 19,000)	III Weak	Bazartete, Distretto di Liquiça	East Timor
500 km (310 mi) SW of epicenter	Gleno (pop: 8,130)	III Weak	Ermera Villa, Ermera	East Timor
506 km (314 mi) SW of epicenter	Maubara (pop: 16,300)	III Weak	Distretto di Liquiça	East Timor

Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

Compare Quake Data

Data for the same earthquake as reported by different agencies

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	Time GMT	Epicenter	Agency
6.0	349 km (217 mi)	2021-04-3 18:42:02	Banda Sea, Indonesia	BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
6.0	338 km (210 mi)	2021-04-3 18:42:02	BANDA SEA, Indonesia 11 km (6.9 mi) epicenter difference with BMKG	EMSC (European-Mediterranean Seismological Centre)
5.6	337 km (209 mi)	2021-04-3 18:42:02	Near Manado, Indonesia 8.2 km (5.1 mi) epicenter difference with BMKG	RENASS (Réseau National de Surveillance Sismique (RéNaSS))
5.9	348 km (216 mi)	2021-04-3 18:42:02	Banda Sea, Indonesia 6.5 km (4 mi) epicenter difference with BMKG	GFZ (German Research Centre for Geosciences)
5.9	326 km (203 mi)	2021-04-3 18:42:01	Banda Sea, Indonesia 6.1 km (3.8 mi) epicenter difference with BMKG	USGS (United States Geological Survey)
5.9	341 km (212 mi)	2021-04-3 18:42:01	Banda Sea, Indonesia 10.7 km (6.7 mi) epicenter difference with BMKG	GeoAu (Geoscience Australia )

Most recent quakes Top 20 past 24 hrs Quakes in East Timor

Seismograms

Seismic station: Kappang, Sulawesi, Indonesia (KAPI/II network) | Distance from quake: 935 km / 581 mi | Show on map | Station Info

Seismic station Kappang, Sulawesi, Indonesia: 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. Bandpass filter applied: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Kappang, Sulawesi, Indonesia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Kappang, Sulawesi, Indonesia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Davao, Philippines (DAV/IU network) | Distance from quake: 1390 km / 864 mi | Show on map | Station Info

Seismic station Davao, Philippines: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Davao, Philippines: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Davao, Philippines: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tennant Creek, NT, Australia (WRAB/II network) | Distance from quake: 1773 km / 1102 mi | Show on map | Station Info

Seismic station Tennant Creek, NT, Australia: 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. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Tennant Creek, NT, Australia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tennant Creek, NT, Australia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Charters Towers, Australia (CTAO/IU network) | Distance from quake: 2563 km / 1593 mi | Show on map | Station Info

Seismic station Charters Towers, Australia: 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. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Charters Towers, Australia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Charters Towers, Australia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Narrogin, Australia (NWAO/IU network) | Distance from quake: 3290 km / 2044 mi | Show on map | Station Info

Seismic station Narrogin, Australia: 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. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Narrogin, Australia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Narrogin, Australia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User-reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

Translate

near Ranau, Sabah (1788.9 km NW of epicenter) [Map] / not felt (reported through our app)

Delhi / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s

Aftershocks

[More info]

Recorded aftershocks, latest first (1 quake)

Date and Time GMT	Mag Depth	Region	Details
Jul 10, 2021 03:38 2 years ago	4.9 300 km	Banda Sea, 172 km S of Ambon City, Maluku, Indonesia	More

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