- Depth
- 40.0 km
- Source
- EMSC
Iwate Prefecture · Ofunato
Country overviewIwate Prefecture · Ofunato
Country overviewA magnitude M3.4 earthquake was recorded near Ofunato, Iwate Prefecture (Japan) on October 4, 2026 at 11:56 UTC. The hypocenter lay relatively close to the surface at around 40 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.
The data is provided by EMSC and cross-checked across seismological networks. Japan: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.
Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.
Depth classes per USGS
Japan
04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 969 Catalogue entries
Of 968 other entries for this area and period, 537 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.
Open seismic profile