Strong mag. 6.9 earthquake - Banda Sea (Indonesia) on Friday, 21 August 2020 - information

Forte terremoto magnitudine 6.9 - 479 km east da Makassar, South Sulawesi, Indonesia, venerdì, 21 agosto 2020

- Forte terremoto magnitudine 6.9 - 479 km east da Makassar, South Sulawesi, Indonesia, venerdì, 21 agosto 2020

Strong magnitude 6.9 earthquake at 632 km depth

21 Aug 04:15 UTC: Primo a segnalare: GFZ dopo 5 minuti.
Profondità ricalcolata da 652.0 a 649.0 km.
Profondità ricalcolata da 649.0 a 650.0 km.
Aug 21 04:22: Magnitudine ricalcolata da 6.6 a 6.5.
Profondità ricalcolata da 650.0 a 630.0 km.
Aug 21 05:14: Magnitudine ricalcolata da 6.5 a 6.9.
Profondità ricalcolata da 630.0 a 632.0 km.
Update Fri, 21 Aug 2020, 13:09
Strong but very deep magnitude 6.9 earthquake beneath Indonesia
A very strong, but also extremely deep (630 km) magnitude 6.9 quake occurred this morning under Indonesia's Banda Sea.
Due to its great depth, it posed no danger on the surface, where it was felt as a very mild shaking over most of Indonesia and adjacent areas including parts of northern Australia.
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Earthquake data:

Data & ora: 21 Aug 2020 04:09:52 UTC -
Magnitudine: 6.9
Profondità: 632.0 km
Epicentro latitudine / longitudine: 6,64°S / 123,49°E (Indonesia)
Vulcano più vicino: Emperor of China (96 km / 60 mi)
Nearby towns and cities:
218 km SSE da Katabu (pop: 42,800)
261 km NNE da Maumere (pop: 47,600)
315 km NNW da Atambua (Kabupaten Belu) (pop: 35,800)
315 km SSE da Kendari (pop: 195,000)
317 km NE da Ende (pop: 77,200)
393 km N da Kupang (pop: 282,400)
479 km ESE da Makassar (pop: 1,321,700)
1840 km E da Giacarta (pop: 8,540,100)
Fonte dati primaria: GFZ
Stima dell'energia sismica liberata: 1,4 x 1015 joules (392 gigawatt hours, equivalent to 3,4 x 105 tons of TNT or 21,1 atomic bombs!) More info
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Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake 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.
MagnitudineProfonditàUbicazioneFonte
M 6.9632 kmBanda Sea (Indonesia)GFZ
M 6.9643 kmBanda Sea (Indonesia)EMSC
M 6.7663 kmBanda Sea (Indonesia)BMKG
M 6.9627 kmBanda Sea (Indonesia)GeoAu
M 6.5640 kmIndonesia [Sea]INGV
M 6.9627 km220 km SSE of Katabu, IndonesiaUSGS

User reports for this quake (37)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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PA USA (15847 km NNE of epicenter) [Map] / Very weak shaking (MMI II) : Went to sleep at 10 p.m.EST. in an upstairs bedroom. I fell deeply asleep after a long day for a few hours, when I felt a very deep but significant shaking that lasted for a short time. In my mind I knew it was a significant earthquake though I didn't rouse to full consciousness. In the morning when I searched for local quakes, I came up with nothing at all especially around 12 am. EST when I was pretty sure it had happened. I know it seems unlikely perhaps, but I'm pretty convinced I felt this
Near Young (3998.4 km SE of epicenter) [Map] / not felt
947.2 km WSW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
1600.2 km NNW of epicenter [Map] / not felt (reported through our app)
Darwin Australia (1033.8 km SE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Bandar Seri Begawan, Brunei (1599.7 km NW of epicenter) [Map] / Very weak shaking (MMI II)
1599.6 km NW of epicenter [Map] / Very weak shaking (MMI II)
833.7 km WSW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
840.7 km WSW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Kakas / Weak shaking (MMI III) : I feel from Minahasa, North Sulawesi | 2 users found this interesting.
Bandung / not felt
Kolkata / not felt
Brunei / not felt
Dili, Timor-Leste / Light shaking (MMI IV)
Dundee Downs Northern Territory / Very weak shaking (MMI II) : Bedroom door rattled and very slight shaking felt in bed
Darwin / Very weak shaking (MMI II)
Dili / not felt
Kuta, Bali, Indonesia / Light shaking (MMI IV)
sunset road / jl. Dewi sri - Bali / Light shaking (MMI IV)
Darwin Australia / Weak shaking (MMI III)
(Indonesia, 934 km W of epicenter) : Gentle swaying of chair but no shakjng. Less than about 40 seconds | 4 users found this interesting. (reported through EMSC)
Tindal (Australia, 1303 km SE of epicenter) : Only felt it because I was sitting still. Very mild movement. Tindal NT Australia | 3 users found this interesting. (reported through EMSC)
Katherine South (Australia, 1289 km SE of epicenter) : Sitting and Still felt vibration like someone beside me farted. There wasn’t a smell and other people felt it but not smelt it, so we put it down to an earth quake. | 2 users found this interesting. (reported through EMSC)
  • It smelled. Trust me there was a smell.
Dili (Timor Leste, 310 km SE of epicenter) : Boards and fittings swayed...chairs were rocking. Intensity could be around 4. | 2 users found this interesting. (reported through EMSC)
Dili (Timor Leste, 310 km SE of epicenter) : Was in food court and the whole building shook for about 1 second. | 2 users found this interesting. (reported through EMSC)
Dili (Timor-Leste, 310 km SE of epicenter) : Those in higher building evacuated down | 2 users found this interesting. (reported through EMSC)
Kota Kinabalu (Malaysia, 1624 km NW of epicenter) : Felt it when siting siting quietly. How is that possible? I'm from Kota Kinabalu Sabah | One user found this interesting. (reported through EMSC)
  • The quake was very strong. Thank you for your report
Legian (Indonesia, 945 km W of epicenter) : Kura Bali | One user found this interesting. (reported through EMSC)
Banjar Medura (Indonesia, 936 km W of epicenter) : Качнуло | One user found this interesting. (reported through EMSC)
Dili (Timor Leste, 310 km SE of epicenter) : It wasn't very strong, but it lasted a while. (reported through EMSC)
Dili (Timor Leste, 310 km SE of epicenter) : Felt the chair move, 2 short shakes (reported through EMSC)
  • It was a very strong earthquake at 6.9
Berrimah (Australia, 1035 km SE of epicenter) : Computers shaking (reported through EMSC)
Legian (Indonesia, 945 km W of epicenter) : Kuta Bali (reported through EMSC)
Banjar Medura (Indonesia, 936 km W of epicenter) : Почувствовал (reported through EMSC)
Sekongkang Bawah (Indonesia, 785 km W of epicenter) : Very mild shake (reported through EMSC)
(Indonesia, 560 km W of epicenter) : Goyannya pelan tetapi cukup lama (reported through EMSC)
Dili (Timor-Leste, 309 km SE of epicenter) : Forte e prolongado (reported through EMSC)
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Aftershocks of the 6.9 quake 479 km east of Makassar, South Sulawesi, Indonesia, 21 August 04:09 UTC

More info
Recorded aftershocks, latest first (34 quakes):
  • 27 Nov 2020 05:49 UTC
    | M 3.8 |
    10 km (6.2 mi) depth
    |
    162 km (101 mi) distance
    | BMKG | Details
  • 18 Nov 2020 19:07 UTC
    | M 4.3 |
    16 km (9.9 mi) depth
    |
    128 km (80 mi) distance
    | BMKG | Details
  • 08 Nov 2020 21:42 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    130 km (81 mi) distance
    | BMKG | Details
  • 08 Nov 2020 21:23 UTC
    | M 3.6 |
    21 km (13 mi) depth
    |
    125 km (77 mi) distance
    | BMKG | Details
  • 05 Nov 2020 17:21 UTC
    | M 4.3 |
    589 km (366 mi) depth
    |
    85 km (53 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:51 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    114 km (71 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:51 UTC
    | M 3.4 |
    10 km (6.2 mi) depth
    |
    118 km (74 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:00 UTC
    | M 3.3 |
    17 km (10.6 mi) depth
    |
    125 km (77 mi) distance
    | BMKG | Details
  • 03 Nov 2020 20:40 UTC
    | M 4.2 |
    10 km (6.2 mi) depth
    |
    117 km (73 mi) distance
    | BMKG | Details
  • 03 Nov 2020 20:40 UTC
    | M 3.3 |
    10 km (6.2 mi) depth
    |
    122 km (76 mi) distance
    | BMKG | Details
  • 29 Oct 2020 19:02 UTC
    | M 3.4 |
    10 km (6.2 mi) depth
    |
    121 km (75 mi) distance
    | BMKG | Details
  • 27 Oct 2020 09:01 UTC
    | M 3.8 |
    242 km (150.4 mi) depth
    |
    118 km (73 mi) distance
    | BMKG | Details
  • 24 Oct 2020 23:02 UTC
    | M 3.4 |
    10 km (6.2 mi) depth
    |
    122 km (76 mi) distance
    | BMKG | Details
  • 18 Oct 2020 14:38 UTC
    | M 4.4 |
    240.6 km (149.5 mi) depth
    |
    128 km (80 mi) distance
    | USGS | Details
  • 18 Oct 2020 04:29 UTC
    | M 3.5 |
    11 km (6.8 mi) depth
    |
    126 km (78 mi) distance
    | BMKG | Details
  • 17 Oct 2020 20:58 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    119 km (74 mi) distance
    | BMKG | Details
  • Show all

Earlier earthquakes in the same area

Strong mag. 6.9 earthquake - 479 km east of Makassar, South Sulawesi, Indonesia, on Friday, 21 August 2020 at 04:09 (GMT)
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