Magnitude
M3.4
- Depth
- 10.0 km
- Source
- EMSC
Kumamoto Prefecture · Kosa
Country overviewJapan · Kumamoto Prefecture
M3.4 Earthquake near Kosa, Kumamoto Prefecture (Japan)
Map
About this earthquake
On July 28, 2026 at 09:39 UTC, a magnitude M3.4 earthquake occurred near Kosa, Kumamoto Prefecture (Japan). With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.
The event was recorded by EMSC. Japan: 3 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.
Details
ID
3659a42b6a19a5f2a4e0f8319cac13edbfed0ba6
Magnitude
M3.4
Depth
10.0 km
UTC time
2026-07-28 09:39:30 UTC
Local time
—
Country
State
City
County
Source
emsc
Coordinates
32.70000,
130.80000
Temperature
20.7°C
Depth profile
Shallow
10 km
10 km — shallower than the regional average (33.1 km)
Regional average: 33.1 km
Why depth matters
Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.
Depth classes per USGS
Volcanoes nearby
-
Asosan Activity reported
Radius · 50 km
Nearby infrastructure
Airports
- Kumamoto Airport16.1 kmStraight-line distance
Japan · KMJ · RJFT
Source: OurAirports · Dataset date: 2026-09-21
This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates
Yatsushiro
Context for this earthquake
21 Sep 2025 – 21 Sep 2026 · M ≥ 3.0 · 100 Catalogue entries
Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.
Open seismic profileHistoric earthquake map · Japan
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.
Country statistics · Japan
View earthquake KPIs, strongest and latest events, and averages for this country.
Stats (last 24h)
Global (24h)
641
Country (24h)
Japan
3