Strong M6.3 earthquake hits Izu Islands, Japan

m6.3 earthquake japan october 3 2023 location map f

A strong earthquake registered by the JMA as M6.3 hit Izu Islands, Japan at 11:38 UTC on October 3, 2023. The agency is reporting a depth of 40 km (25 miles). The USGS is reporting M6.1 at a depth of 11.9 km (7.4 miles); EMSC M6.1 at a depth of 10 km (6.2 miles).

According to the USGS, the epicenter was located about 539.1 km (335 miles) S of Shimoda, Shizuoka, Japan.

There is no tsunami threat from this earthquake.

The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are heavy wood frame and reinforced/confined masonry construction.

m6.3 earthquake japan october 3 2023 location map bg
Image credit: TW/SAM, Google

Estimated population exposure to earthquake shaking

m6.1 earthquake japan october 3 2023 usgs epe

Selected cities exposed

m6.1 earthquake japan october 3 2023 usgs epet

Regional seismicity

m6.1 earthquake japan october 3 2023 emsc regional seismicity

Featured image credit: TW/SAM, Google

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