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Light mag. 4.5 earthquake - North Pacific Ocean, 29 km southwest of Tateyama, Chiba, Japan, on Tuesday, May 17, 2022 at 10:46 pm (GMT +9) -

Light mag. 4.5 earthquake - North Pacific Ocean, 29 km southwest of Tateyama, Chiba, Japan, on Tuesday, May 17, 2022 at 10:46 pm (GMT +9) Light mag. 4.5 earthquake - North Pacific Ocean, 29 km southwest of Tateyama, Chiba, Japan, on Tuesday, May 17, 2022 at 10:46 pm (GMT +9)

Light magnitude 4.5 earthquake at 144 km depth

17 May 13:54 UTC: First to report: NIED after 8 minutes.
17 May 14:13: Now using data updates from USGS
17 May 14:32: Hypocenter depth recalculated from 143.3 to 144.1 km (from 89 to 90 mi). Epicenter location corrected by 0.5 km (0.3 mi) towards SSE.
Update Tue, 17 May 2022, 14:09
Moderate 4.4 quake hits near Tateyama, Tateyama-shi, Chiba, Japan
4.4 quake 17 May 10:46 pm (GMT +9)
4.4 quake 17 May 10:46 pm (GMT +9)
An intermediate magnitude 4.4 earthquake was reported late at night near Tateyama, Tateyama-shi, Chiba, Japan.
According to Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the quake hit on Tuesday, May 17th, 2022, at 10:46 pm local time at an intermediate depth of 141.4 km. 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 European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.1 earthquake.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Tateyama (pop. 50,100) located 37 km from the epicenter, Miura (pop. 51,500) 44 km away, Itō (pop. 71,600) 51 km away, Yokosuka (pop. 429,000) 60 km away, Kamakura (pop. 166,000) 62 km away, Chigasaki (pop. 231,700) 67 km away, Fujisawa (pop. 394,600) 67 km away, Odawara (pop. 203,000) 68 km away, and Yokohama (pop. 3,574,400) 76 km away. In Tokyo (pop. 8,336,600, 105 km away), the quake was probably not felt.
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 data

Earthquake details

Date & timeMay 17, 2022 13:46:30 UTC -
Local time at epicenterTuesday, May 17, 2022 at 10:46 pm (GMT +9)
Depth144.1 km
Epicenter latitude / longitude34.7864°N / 139.6559°E (North Pacific Ocean, Japan)
Antipode34.786°S / 40.344°W
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoOshima (25 km / 16 mi)
Nearby towns and cities29 km (18 mi) SW of Tateyama (pop: 50,100) | Show on map | Quakes nearby
39 km (25 mi) S of Miura (pop: 51,500) | Show on map | Quakes nearby
55 km (34 mi) S of Yokosuka (pop: 429,000) | Show on map | Quakes nearby
59 km (37 mi) S of Kamakura (pop: 166,000) | Show on map | Quakes nearby
65 km (40 mi) SSE of Fujisawa (pop: 394,600) | Show on map | Quakes nearby
65 km (41 mi) SSE of Chigasaki (pop: 231,700) | Show on map | Quakes nearby
72 km (45 mi) S of Yokohama (pop: 3,574,400) | Show on map | Quakes nearby
101 km (62 mi) S of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
65 km (41 mi) NE of Shikine-jima Island (pop: 600) | Show on map | Quakes nearby
202 km (125 mi) SE of Honshu Island (pop: 104,000,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 17°C (63 F), humidity: 84%, wind: 3 m/s (6 kts) from SW
Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | about seismic energy
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If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
4.4141 km28 Km SW of Tateyama, JapanNIED
4.5144 kmNear S. Coast of Honshu, JapanRaspberryShake
4.5136 kmNear S. Coast of Honshu, JapanGFZ

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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