Quake Info: Moderate Mag. 4.0 earthquake

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Earthquake with a magnitude of 4.0 at a depth of 11 km

Oct. 20, 19:00 UTC: Initial message: BMKG after 7 minutes.
Oct. 20, 7:20 pm: Size recalculated from 4.2 to 4.0.

Update Wed, Oct 20, 2021, 7:06 pm

A moderate magnitude 4.2 earthquake was reported just 93 km south of Pelabuhanratu, Indonesia

4.2 quake October 21st 1:53 a.m. (GMT +7)

4.2 quake October 21st 1:53 a.m. (GMT +7)

The Indonesian Meteorology, Climatology and Geophysics Agency reported a 4.2 magnitude quake in Indonesia near Pelabuhanratu, West Java, just 13 minutes ago. The earthquake occurred on Thursday, October 21, 2021, in the early morning at 1:53 a.m. local time, at a shallow depth of 11 km. The exact magnitude, epicenter, and depth of the quake could be revised within the next few hours or minutes as seismologists review the data and refine their calculations, or when other agencies publish their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Center (EMSC), which also listed the quake with a magnitude of 4.2.
Cities near the epicenter where the quake may have been felt to be very weak include Pelabuhanratu (population 43,000), 93 km from the epicenter.

If you were or are in this area during the quake help others with your feedback and report it here.

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Earthquake data

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Appointment time: October 20, 2021 18:53:19 UTC –
Local time in the epicenter: Thursday, October 21, 2021 01:53 a.m. (GMT +7)
Size: 4
Depth: 11.0 km

Epicenter latitude / longitude: 7.82 ° S / 106.48 ° E↗ (Indian Ocean, Indonesia)
Antipode: 7.82 ° N / 73.52 ° W↗
Closest volcano: Perbakti (121 km)

Cities nearby:
93 km (58 mi) south of Pelabuhanratu (Population: 43,000) -> See quakes nearby!
112 km (69 mi) SSW from Sukabumi (Population: 276,400) -> See quakes nearby!
120 km (75 mi) SSW from Cicurug (Population: 89,000) -> See quakes nearby!
129 km (80 mi) SSW from Caring (Population: 91,800) -> See quakes nearby!
141 km (87 mi) SSW of bogoleu (Population: 800,000) -> See quakes nearby!
143 km (89 mi) south of Ciampea (Population: 207,200) -> See quakes nearby!
144 km (90 mi) southwest of Soreang (Population: 150,900) -> See quakes nearby!
159 km (99 mi) southwest of Banding (Population: 1,699,700) -> See quakes nearby!
183 km (114 mi) SSW from Jakarta (Population: 8,540,100) -> See quakes nearby!
302 km (188 mi) NNE of Flying Fish Cove (Christmas Island) (Pop: 500) -> See quakes nearby!

Weather in the epicenter at the time of the quake:
Overcast clouds 27.6 ° C (82 F), humidity: 81%, wind: 7 m / s (14 kts) from ESE

Primary data source: BMKG (Meteorological, Climatological and Geophysical Agency of Indonesia)

Estimated energy released: 6.3 x 1010 Joule (17.5 megawatt hours, equivalent to 15.1 tons of TNT) More information

If you felt this quake (or were near the epicenter), Please share your experience and send a short “I felt it” report! Other users would love to hear about it!
If you did NOT feel the tremor even though you were in the area please report it! Your input is valuable to earthquake research, seismic hazard analysis, and containment efforts. You can use your device’s location or the map to see where you were during the earthquake. Thanks very much!

Dates for the same earthquake reported by different authorities

Info: The more agencies report on the same quake and post similar data, the more confidence you can have in the data. It usually takes up to a few hours for earthquake parameters to be calculated with near optimal accuracy.

Like. depth Location source
4.0 11 km Java, Indonesia BMKG
4.2 11 km JAVA, INDONESIA EMSC

Previous earthquakes in the same area

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