Light mag. 4.9 earthquake - Japan Sea, 45 km northeast of Maizuru, Kyoto, Japan, on Tuesday, Aug 24, 2021 at 7:20 pm (GMT +9) -

Light mag. 4.9 earthquake - Japan Sea, 45 km northeast of Maizuru, Kyoto, Japan, on Tuesday, Aug 24, 2021 at 7:20 pm (GMT +9) Light mag. 4.9 earthquake - Japan Sea, 45 km northeast of Maizuru, Kyoto, Japan, on Tuesday, Aug 24, 2021 at 7:20 pm (GMT +9)

Light magnitude 4.9 earthquake at 364 km depth

24 Aug 10:28 UTC: First to report: NIED after 8 minutes.
Update Tue, 24 Aug 2021, 10:33
Moderate 4.9 quake hits near Maizuru, Maizuru-shi, Kyoto, Japan
4.9 quake 24 Aug 7:20 pm (GMT +9)
4.9 quake 24 Aug 7:20 pm (GMT +9)
An earthquake of magnitude 4.9 occurred early evening on Tuesday 24 August 2021 at 7:20 pm local time near Maizuru, Maizuru-shi, Kyoto, Japan, as reported by Japan's National Research Institute for Earth Science and Disaster Resilience (NIED).
According to preliminary data, the quake was located at a great depth of 364.4 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.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Obama (pop. 32,900, 40 km away), Maizuru (pop. 92,500, 45 km away), Miyazu (pop. 21,600, 45 km away), Tsuruga (pop. 68,500, 50 km away), Takefu (pop. 75,800, 57 km away), Sabae (pop. 66,300, 60 km away), Kyoto (pop. 1,459,600, 91 km away), and Ōtsu (pop. 298,200, 96 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 & timeAug 24, 2021 10:20:19 UTC -
Local time at epicenterTuesday, Aug 24, 2021 at 7:20 pm (GMT +9)
Depth364.4 km
Epicenter latitude / longitude35.818°N / 135.544°E (Japan Sea, Japan)
Antipode35.818°S / 44.456°W
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcanoHaku-san (117 km / 73 mi)
Nearby towns and cities40 km (25 mi) NNW of Obama (pop: 32,900) | Show on map | Quakes nearby
45 km (28 mi) NNE of Maizuru (pop: 92,500) | Show on map | Quakes nearby
45 km (28 mi) NE of Miyazu (pop: 21,600) | Show on map | Quakes nearby
50 km (31 mi) WNW of Tsuruga (pop: 68,500) | Show on map | Quakes nearby
57 km (35 mi) W of Takefu (pop: 75,800) | Show on map | Quakes nearby
60 km (37 mi) WSW of Sabae (pop: 66,300) | Show on map | Quakes nearby
91 km (56 mi) NNW of Kyoto (pop: 1,459,600) | Show on map | Quakes nearby
96 km (59 mi) NNW of Ōtsu (pop: 298,200) | Show on map | Quakes nearby
125 km (78 mi) N of Osaka (pop: 2,592,400) | Show on map | Quakes nearby
375 km (233 mi) W of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
172 km (107 mi) NNE of Awaji Island (pop: 129,000) | Show on map | Quakes nearby
222 km (138 mi) W of Honshu Island (pop: 104,000,000) | Show on map | Quakes nearby
296 km (184 mi) NE of Shikoku Island (pop: 4,142,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 26°C (79 F), humidity: 86%, wind: 8 m/s (16 kts) from SSE
Estimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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.
4.3357 kmWestern Honshu, JapanGFZ
4.2358 kmWestern Honshu, JapanUSGS

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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