Terremoto moderato mag. 4.2 - 1.6 km a ovest da Honmachi, Yatsushiro Shi, Prefettura di Kumamoto, Giappone, lunedí, 01 febbraio 2021 -

Terremoto moderato mag. 4.2 - 1.6 km a ovest da Honmachi, Yatsushiro Shi, Prefettura di Kumamoto, Giappone, lunedí, 01 febbraio 2021

Terremoto moderato magnitudine 4.2 at 14 km depth

1 Feb 07:24 UTC: Primo a segnalare: NIED dopo 6 minuti.
Update Mon, 1 Feb 2021, 07:30
Moderate magnitude 4.2 quake hits 2 km southwest of Honmachi, Japan in the afternoon
4.2 quake 1 Feb 4:17 pm (GMT +9)
4.2 quake 1 Feb 4:17 pm (GMT +9)
NIED reported a magnitude 4.2 quake in Japan near Honmachi, Yatsushiro Shi, Kumamoto, only 12 minutes ago. The earthquake hit in the afternoon on Monday 1 February 2021 at 4:17 pm local time at a shallow depth of 13.9 km. 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 European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.9 earthquake.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Honmachi (pop. 104,300) located 2 km from the epicenter, Uto (pop. 39,200) 22 km away, Hitoyoshi (pop. 38,000) 35 km away, Kumamoto (pop. 680,400) 36 km away, and Minamata (pop. 29,400) 36 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Kikuchi (pop. 26,700) located 58 km from the epicenter, Yamaga (pop. 32,300) 58 km away, and Aso (pop. 28,000) 67 km away.
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Earthquake data:

Data & ora: 1 Feb 2021 07:17:43 UTC -
Ora locale a epicentro: Monday, 1 Feb 2021 16:17 (GMT +9)
Magnitudine: 4.2
Profondità: 13.9 km
Epicentro latitudine / longitudine: 32.5°N / 130.583°E (Yatsushiro Shi, Prefettura di Kumamoto, Giappone)
Vulcano più vicino: Unzen (39 km / 24 mi)
Nearby towns and cities:
2 km OSO da Honmachi (pop: 104,300) --> Vedi sismi vicini
18 km SSO da Matsubase (Uki) (pop: 26,200) --> Vedi sismi vicini
22 km SSO da Uto (pop: 39,200) --> Vedi sismi vicini
35 km NNO da Hitoyoshi (pop: 38,000) --> Vedi sismi vicini
36 km SSO da Kumamoto (pop: 680,400) --> Vedi sismi vicini
36 km NNE da Minamata (pop: 29,400) --> Vedi sismi vicini
39 km E da Hondomachi-hondo (pop: 40,800) --> Vedi sismi vicini
46 km SSO da Uekimachi-mōno (Kumamoto) (pop: 31,700) --> Vedi sismi vicini
123 km S da Fukuoka (pop: 1,392,300) --> Vedi sismi vicini
910 km OSO da Tokyo (pop: 8,336,600) --> Vedi sismi vicini
39 km O da Kyushu Island (pop: 13,232,000) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Broken Clouds 15.8°C (60 F), humidity: 55%, wind: 6 m/s (12 kts) from SSW
Fonte dati primaria: NIED (National Research Institute for Earth Science and Disaster Resilience)
Stima dell'energia sismica liberata: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) More info
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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.
MagnitudineProfonditàUbicazioneFonte
4.214 kmSOUTHERN KUMAMOTO PREF, JapanNIED
3.910 kmKYUSHU, JAPANEMSC

User reports for this quake

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