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Terremoto moderato mag. 4.8 - North Pacific Ocean, 20 km a sud-est da Kashima-shi, Giappone, domenica, 18 set 2022 11:09 (GMT +9) -

Terremoto moderato mag. 4.8 - North Pacific Ocean, 20 km a sud-est da Kashima-shi, Giappone, domenica, 18 set 2022 11:09 (GMT +9) Terremoto moderato mag. 4.8 - North Pacific Ocean, 20 km a sud-est da Kashima-shi, Giappone, domenica, 18 set 2022 11:09 (GMT +9)

Terremoto moderato magnitudine 4.8 a 47 km di profondità

18 Sep 02:12 UTC: Primo a segnalare: VolcanoDiscovery dopo 2 minuti.
18 Sep 02:16: Ora utilizzando nuova fonte di dati: NIED
... [show all] ...
19 Sep 03:02: Profondità ricalcolata da 46.8 a 46.7 km (da 29 a 29 mi).
Update Sun, 18 Sep 2022, 02:33

Magnitude 4.7 earthquake strikes near Kashima-shi, Ibaraki, Japan

4.7 quake 18 Sep 11:09 am (GMT +9)
4.7 quake 18 Sep 11:09 am (GMT +9)
A moderately shallow magnitude 4.7 earthquake was reported in the morning near Kashima-shi, Ibaraki, Japan.
According to Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the quake hit on Sunday, September 18th, 2022, at 11:09 am local time at a moderately shallow depth of 38.9 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.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 5.0. Other agencies reporting the same quake include the German Research Centre for Geosciences (GFZ) at magnitude 5.0, the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.8, and France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.0.
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 Omigawa (pop. 25,800) located 3 km from the epicenter, Itako (pop. 25,800) 9 km away, Kashima-shi (pop. 65,800) 10 km away, Sawara (pop. 47,200) 10 km away, Katori-shi (pop. 83,200) 11 km away, Нарита (pop. 100,600) 29 km away, Ryūgasaki (pop. 85,800) 39 km away, and Mito (pop. 246,500) 55 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Tokyo (pop. 8,336,600) located 86 km from the epicenter, and Yokohama (pop. 3,574,400) 100 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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Dettagli del sismo

Data e ora18 Sep 2022 02:09:46 UTC -
Ora locale all'epicentrodomenica, 18 set 2022 11:09 (GMT +9)
StatusConfermato
Magnitudine4.8
Prof.46.7 km
Epicentro latitudine / longitudine35.8282°N / 140.7854°E (North Pacific Ocean, Giappone)
Antipode35.828°S / 39.215°W
Intensità di scuotimentoScuotimento debole
Sentito7 rapporti
Fonte dati primariaUSGS (United States Geological Survey)
Vulcano più vicinoTakahara (149 km / 93 mi)
Luoghi vicini11 km NNO da Hasaki (pop: 39,200) | Mappa | Sismi nelle vicinanze
17 km NE da Asahi (pop: 41,700) | Mappa | Sismi nelle vicinanze
20 km SE da Kashima-shi (pop: 65,800) | Mappa | Sismi nelle vicinanze
26 km ESE da Sawara (pop: 47,200) | Mappa | Sismi nelle vicinanze
27 km ESE da Katori-shi (pop: 83,200) | Mappa | Sismi nelle vicinanze
43 km E da Нарита (pop: 100,600) | Mappa | Sismi nelle vicinanze
100 km E da Tokyo (pop: 8,336,600) | Mappa | Sismi nelle vicinanze
102 km ENE da Kawasaki (pop: 1,306,800) | Mappa | Sismi nelle vicinanze
220 km NE da Shikine-jima Island (pop: 600) | Mappa | Sismi nelle vicinanze
320 km SE da Sado Island (pop: 55,200) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoBroken Clouds 29.3°C (85 F), humidity: 82%, wind: 8 m/s (16 kts) from SSE
Energia sismica rilasciata stimata1 x 1012 joules (278 MWh, equivalent to 239 tons of TNT) | 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.Prof.UbicazioneFonte
4.847 km11 Km NNW of Hasaki, JapanUSGS
5.010 kmJapan: Near TokyoRENASS
4.860 kmNEAR EAST COAST OF HONSHU, JAPANEMSC
5.056 kmNear East Coast of Honshu, JapanGFZ
4.847 kmNear East Coast of Honshu, JapanRaspberryShake
4.810 kmNear East Coast Of Honshu, JapanIRIS
4.739 kmJapan: SOUTHERN IBARAKI PREFNIED
5.052 kmNear East Coast of Honshu, JapanGeoAu

Seismograms

Seismic station: Ibaraki Yasato (JYT/JP network) | Distance from quake: 70 km / 43 mi | Show on map | Station Info
Seismic station Ibaraki Yasato: 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Ishioka, Ibaraki (60.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) : Sitting on chair, noticed small shaking | One user found this interesting.  
hitachinaka (67 km NNW of epicenter) [Map] / Weak shaking (MMI III) : minimal shaking | One user found this interesting.  
Narita airport / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Light shaking | One user found this interesting.  
Narita (39.2 km W of epicenter) [Map] / Weak shaking (MMI III)
Narita, Japan (39.5 km W of epicenter) [Map] / Weak shaking (MMI III)
Narita / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Narita / Light shaking (MMI IV) / rattling, vibrating / 10-15 s

Earlier earthquakes in the same area

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