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Moderate mag. 5.7 earthquake - Molucca Sea, 139 km south of Manado, North Sulawesi, Indonesia, on Thursday, Aug 18, 2022 at 3:46 pm (GMT +8) -

Moderate magnitude 5.7 earthquake at 155 km depth

18 Aug 07:53 UTC: First to report: GFZ after 7 minutes.
18 Aug 07:54: Hypocenter depth recalculated from 172.0 to 173.0 km (from 107 to 107 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards E.
18 Aug 08:02: Now using data updates from USGS
18 Aug 08:07: Now using data updates from BMKG

Update Thu, 18 Aug 2022, 08:00

Magnitude 5.2 earthquake strikes near Tomohon, Kota Tomohon, North Sulawesi, Indonesia

5.2 quake 18 Aug 3:46 pm (GMT +8)

Indonesia was shaken near Tomohon, Kota Tomohon, North Sulawesi, by an earthquake of magnitude 5.2 only 14 minutes ago, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at an intermediate to considerable depth of 173 km beneath the epicenter near Tomohon, Kota Tomohon, North Sulawesi, Indonesia, early afternoon on Thursday, August 18th, 2022, at 3:46 pm local time. The strength of the earthquake may have been tempered by its relative great depth below the surface, which makes it feel weaker in absolute terms. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 5.2 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.5.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Tomohon (pop. 27,600) located 115 km from the epicenter, and Tondano (pop. 33,300) 119 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 details

Date & time	Aug 18, 2022 07:46:28 UTC -
Local time at epicenter	Thursday, Aug 18, 2022 at 3:46 pm (GMT +8)
Status	Confirmed
Magnitude	5.7
Depth	155.0 km
Epicenter latitude / longitude	0.31°N / 124.41°E (Molucca Sea, Indonesia)
Antipode	0.31°S / 55.59°W
Shaking intensity	Weak shaking
Felt	1 report
Primary data source	BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Nearest volcano	Ambang (48 km / 30 mi)
Nearby towns and cities	120 km (75 mi) SSW of Tomohon (pop: 27,600) \| Show on map \| Quakes nearby 124 km (77 mi) SSW of Tondano (Kabupaten Minahasa) (pop: 33,300) \| Show on map \| Quakes nearby 139 km (87 mi) SSW of Manado (pop: 451,900) \| Show on map \| Quakes nearby 152 km (94 mi) E of Gorontalo (pop: 144,200) \| Show on map \| Quakes nearby 154 km (96 mi) SW of Bitung (pop: 137,400) \| Show on map \| Quakes nearby 229 km (142 mi) NE of Luwuk (pop: 47,800) \| Show on map \| Quakes nearby 335 km (208 mi) W of Ternate (pop: 101,700) \| Show on map \| Quakes nearby 353 km (220 mi) W of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Heavy Intensity Rain 27.1°C (81 F), humidity: 74%, wind: 3 m/s (5 kts) from SW
Estimated seismic energy released	2.2 x 10¹³ joules (6.22 gigawatt hours, equivalent to 5351 tons of TNT or 0.3 atomic bombs!) \| about seismic energy

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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
5.7	155 km	Indonesia: Di Laut 47 Km Tenggara Bolaang Uki	BMKG
5.4	169 km	MINAHASA, SULAWESI, INDONESIA	EMSC
5.4	167 km	Indonesia: Minahassa Peninsula, Sulawesi	RaspberryShake
5.4	173 km	118 Km SSW of Tomohon, Indonesia	GFZ
5.5	173 km	Minahassa Peninsula, Sulawesi, Indonesia [Sea: Indonesia]	INGV
5.4	167 km	Indonesia: Minahassa Peninsula, Sulawesi	USGS
5.4	160 km	Indonesia: Minahassa Peninsula, Sulawesi	GeoAu
5.2	178 km	Indonesia: Near Manado	RENASS

Most recent quakes Top 20 past 24 hrs Quakes in Indonesia

Seismograms

Seismic station: Davao, Philippines (DAV/IU network) | Distance from quake: 763 km / 474 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: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (5)

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

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Translate

near Sinjai, South Sulawesi (776.9 km SW of epicenter) [Map] / not felt : Not felt (reported through our app)

Bitung, North Sulawesi (151.3 km NNE of epicenter) [Map] / not felt (reported through our app)

Bali / not felt (reported through our app)

Lembeh / Weak shaking (MMI III) / 2-5 s

Luwuk / not felt (reported through our app)

Aftershocks

[More info]

Recorded aftershocks, latest first (9 quakes)

Date and time	Mag Depth	Location	Details
Oct 12, 2022 15:24 16 weeks ago	2.7 191 km	108 km SW of Tondano, Kabupaten Minahasa, North Sulawesi, Indonesia	More
Sep 27, 2022 09:39 18 weeks ago	3.6 26 km	Molucca Sea, 122 km S of Manado, North Sulawesi, Indonesia	More
Sep 16, 2022 08:17 20 weeks ago	4.8 25 km	Molucca Sea, 166 km SE of Gorontalo, Indonesia	More
Sep 7, 2022 20:06 21 weeks ago	2.6 29 km	Molucca Sea, Indonesia	More
Sep 7, 2022 18:56 21 weeks ago	3.1 30 km	Molucca Sea, 171 km E of Gorontalo, Indonesia	More
Sep 6, 2022 14:24 21 weeks ago	4.3 87 km	Molucca Sea, 161 km SE of Gorontalo, Indonesia	More
Sep 5, 2022 09:30 21 weeks ago	2.7 10 km	Molucca Sea, Indonesia	More
Sep 2, 2022 07:27 22 weeks ago	3.3 144 km	Molucca Sea, 93 km S of Tondano, Kabupaten Minahasa, North Sulawesi, Indonesia	More
Aug 27, 2022 01:19 22 weeks ago	3.6 23 km	Molucca Sea, 126 km S of Manado, North Sulawesi, Indonesia	More

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