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Sismo leggero mag. 4.1 - North Pacific Ocean, 16 km a sud-est da Tomakomai, Hokkaido, Giappone, sabato, 30 lug 2022 09:55 (GMT +9) -

Sismo leggero magnitudine 4.1 a 115 km di profondità

30 Jul 01:02 UTC: Primo a segnalare: NIED dopo 6 minuti.
30 Jul 01:12: Ora utilizzando nuova fonte di dati: USGS

Update Sat, 30 Jul 2022, 01:06

Moderate 4.1 quake hits near Tomakomai, Tomakomai Shi, Hokkaido, Japan

4.1 quake 30 Jul 9:55 am (GMT +9)

Just 10 minutes ago, a 4.1-magnitude earthquake struck near Tomakomai, Tomakomai Shi, Hokkaido, Japan. The tremor was recorded in the morning on Saturday, July 30th, 2022, at 9:55 am local time, at an intermediate depth of 134 km below the surface.
The event was filed by Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the first seismological agency to report it.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Tomakomai (pop. 174,800, 21 km away), Chitose (pop. 92,900, 35 km away), Shiraoi (pop. 20,800, 37 km away), Shizunai-furukawachō (pop. 22,400, 51 km away), Kitahiroshima (pop. 62,400, 54 km away), Ebetsu (pop. 134,000, 69 km away), Muroran (pop. 96,200, 70 km away), Sapporo (pop. 1,883,000, 71 km away), and Iwamizawa (pop. 85,100, 76 km away), the quake was probably not felt.

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Dettagli del sismo

Data e ora	30 Jul 2022 00:55:39 UTC -
Ora locale all'epicentro	sabato, 30 lug 2022 09:55 (GMT +9)
Status	Confermato
Magnitudine	4.1
Prof.	114.7 km
Epicentro latitudine / longitudine	42.5336°N / 141.746°E (North Pacific Ocean, Giappone)
Antipodo	42.534°S / 38.254°W
Intensità di scuotimento	Scuotimento molto debole
Sentito	0 rapporti
Fonte dati primaria	USGS (United States Geological Survey)
Vulcano più vicino	Shikotsu (35 km / 22 mi)
Luoghi vicini	16 km SE da Tomakomai (pop: 174,800) \| Mappa \| Sismi nelle vicinanze 33 km E da Shiraoi (pop: 20,800) \| Mappa \| Sismi nelle vicinanze 33 km SSE da Chitose (pop: 92,900) \| Mappa \| Sismi nelle vicinanze 51 km SSE da Kitahiroshima (pop: 62,400) \| Mappa \| Sismi nelle vicinanze 66 km SSE da Ebetsu (pop: 134,000) \| Mappa \| Sismi nelle vicinanze 67 km ENE da Muroran (pop: 96,200) \| Mappa \| Sismi nelle vicinanze 68 km SSE da Sapporo (pop: 1,883,000) \| Mappa \| Sismi nelle vicinanze 782 km NNE da Tokyo (pop: 8,336,600) \| Mappa \| Sismi nelle vicinanze 139 km SO da Hokkaido Island (pop: 5,500,000) \| Mappa \| Sismi nelle vicinanze
Meteo all'epicentro al momento del sismo	Overcast Clouds 22.1°C (72 F), humidity: 88%, wind: 3 m/s (7 kts) from S
Energia sismica rilasciata stimata	8.9 x 10¹⁰ joules (24.8 MWh, equivalent to 21.3 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.	Ubicazione	Fonte
4.1	115 km	16 Km SE of Tomakomai, Japan	USGS
4.1	120 km	HOKKAIDO, JAPAN REGION	EMSC
4.1	134 km	Japan: S OFF TOMAKOMAI	NIED
4.1	115 km	Hokkaido, Japan Region	RaspberryShake
4.1	122 km	Hokkaido, Japan Region	GFZ

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Seismograms

Seismic station: Eniwa (JEW/JP network) | Distance from quake: 42 km / 26 mi | Show on map | Station Info

Seismic station Eniwa: 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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Seismic station Eniwa: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Eniwa: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Erimo (JEM/JP network) | Distance from quake: 129 km / 80 mi | Show on map | Station Info

Seismic station Erimo: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Erimo: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Erimo: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Yuzhno Sakhalinsk, Russia (YSS/IU network) | Distance from quake: 499 km / 310 mi | Show on map | Station Info

Seismic station Yuzhno Sakhalinsk, Russia: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Yuzhno Sakhalinsk, Russia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Yuzhno Sakhalinsk, Russia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Ibaraki Yasato (JYT/JP network) | Distance from quake: 713 km / 443 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Ibaraki Yasato: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Ibaraki Yasato: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Hachijojima Island (JHJ2/JP network) | Distance from quake: 1061 km / 659 mi | Show on map | Station Info

Seismic station Hachijojima Island: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Hachijojima Island: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Hachijojima Island: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

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

There are no user reports for this quake.

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