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Strong mag. 6.0 Earthquake - Philippine Sea, Indonesia, on Sunday, Dec 5, 2021 08:47 am (GMT +9)

Strong magnitude 6.0 earthquake at 174 km depth

4 Dec 23:53 UTC: First to report: GFZ after 6 minutes.
4 Dec 23:54: Magnitude recalculated from 6.2 to 6.1. Hypocenter depth recalculated from 166.0 to 168.0 km (from 103 to 104 mi). Epicenter location corrected by 1.6 km (1 mi) towards SE.
... [show all] ...
5 Dec 00:07: Now using data updates from USGS

Earthquake details

Date & time	Dec 4, 2021 23:47:57 UTC
Local time at epicenter	Sunday, Dec 5, 2021 08:47 am (GMT +9)
Status	Confirmed
Magnitude	6
Depth	174.3 km
Epicenter latitude / longitude	4.0681°N / 128.1359°E Philippine Sea, Indonesia
Antipode	4.0681°S / 51.864°W
Shaking intensity	Weak shaking
Felt	2 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	###NEARESTVOLCANO2###
Weather at epicenter at time of quake	Overcast Clouds 28.8°C (84 F), humidity: 76%, wind: 9 m/s (18 kts) from NNW
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
261 km (162 mi) S of epicenter	Tobelo (pop: 10,000)	III Weak	North Maluku	Indonesia
374 km (232 mi) SSW of epicenter	Ternate (pop: 101,700)	III Weak	North Maluku	Indonesia
376 km (234 mi) S of epicenter	Sofifi (pop: 36,200)	III Weak	North Maluku	Indonesia
385 km (239 mi) NW of epicenter	Mati (pop: 105,900)	III Weak	Province of Davao Oriental, Davao	Philippines
399 km (248 mi) NW of epicenter	General Santos City (pop: 679,600)	III Weak	Province of South Cotabato, Soccsksargen	Philippines
429 km (266 mi) NW of epicenter	Digos (pop: 116,100)	III Weak	Province of Davao del Sur, Davao	Philippines
438 km (272 mi) SW of epicenter	Bitung (pop: 137,400)	III Weak	North Sulawesi	Indonesia
465 km (289 mi) SW of epicenter	Manado (pop: 451,900)	III Weak	North Sulawesi	Indonesia
472 km (293 mi) SW of epicenter	Tondano (pop: 33,300)	III Weak	North Sulawesi	Indonesia
480 km (298 mi) SW of epicenter	Tomohon (pop: 27,600)	III Weak	North Sulawesi	Indonesia

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	174 km (108 mi)	2021-12-4 23:47:57	259 Km N of Tobelo, Indonesia	USGS (United States Geological Survey)
6.0	160 km (99 mi)	2021-12-4 23:47:55	NORTH OF HALMAHERA, INDONESIA 4.4 km (2.8 mi) epicenter difference with USGS	EMSC (European-Mediterranean Seismological Centre)
6.0	169 km (105 mi)	2021-12-4 23:47:56	Talaud Islands, Indonesia 3 km (1.9 mi) epicenter difference with USGS	GFZ (German Research Centre for Geosciences)
6.0	174 km (108 mi)	2021-12-4 23:47:57	North of Halmahera, Indonesia 0 km (0 mi) epicenter difference with USGS	RaspberryShake (RaspberryShake)
5.9	171 km (106 mi)	2021-12-4 23:47:57	Indonesia: Near Davao 0.7 km (0.4 mi) epicenter difference with USGS	RENASS (Réseau National de Surveillance Sismique (RéNaSS))
6.1	156 km (97 mi)	2021-12-4 23:48:00	Indonesia: 285 Km S 67° E of Sarangani Island (Municipality Of Sarangani) (Davao Occidental) 55 km (34 mi) epicenter difference with USGS	PHIVOLCS (Philippine Institute of Volcanology and Seismology)
6.0	172 km (107 mi)	2021-12-4 23:47:57	North of Halmahera, Indonesia [Sea: Indonesia] 7.2 km (4.5 mi) epicenter difference with USGS	INGV (Istituto Nazionale di Geofisica e Vulcanologia)
6.1	171 km (106 mi)	2021-12-4 23:47:58	North of Halmahera, Indonesia 11 km (6.9 mi) epicenter difference with USGS	BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
6.0	163 km (101 mi)	2021-12-4 23:47:56	North of Halmahera, Indonesia 1.9 km (1.2 mi) epicenter difference with USGS	GeoAu (Geoscience Australia )
6.1	173 km (107 mi)	2021-12-4 23:47:00	Indonesia: 336 Km S 62° E of Sarangani Island (Municipality Of Sarangani) (Davao Occidental) 1.8 km (1.1 mi) epicenter difference with USGS	PHIVOLCS (Philippine Institute of Volcanology and Seismology)

Most recent quakes Top 20 past 24 hrs Quakes in Philippines

Seismograms

Seismic station: Davao, Philippines (DAV/IU network) | Distance from quake: 438 km / 272 mi | Show on map | Station Info

Seismic station Davao, Philippines: 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: 0.1-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station: Kappang, Sulawesi, Indonesia (KAPI/II network) | Distance from quake: 1374 km / 854 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

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

Seismic station: Guam, Mariana Islands (GUMO/IU network) | Distance from quake: 2119 km / 1317 mi | Show on map | Station Info

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

Seismic station Guam, Mariana Islands: 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: 2754 km / 1711 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: 3336 km / 2073 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

User-reports for this quake (3)

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

Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!

Translate

General Santos City,Bula / Weak shaking (MMI III) / single vertical bump / 5-10 s : I felt but weak shaking | 3 users found this interesting.

Philippine Sea (0 km S of epicenter) [Map] / Very strong shaking (MMI VII)

Enschede,7521ZH,Holland / not felt

Aftershocks

[More info]

Recorded aftershocks, latest first (4 quakes)

Date and Time GMT	Mag Depth	Region	Details
May 23, 2022 23:11 1 year 27 weeks ago	4.7 150 km	Philippine Sea, Indonesia	More
Feb 24, 2022 15:38 1 year 40 weeks ago	3.7 33 km	Philippine Sea, Indonesia	More
Jan 26, 2022 09:52 1 year 44 weeks ago	4.9 62 km	Philippine Sea, Indonesia	More
Dec 7, 2021 00:33 1 year 51 weeks ago	2.7 9 km	Philippine Sea, Indonesia	More

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