5.5

M5.5 Earthquake 10 km NW of Hamakita, Japan — November 7, 2026

2026-11-07 16:04:35 UTC (2 hours ago) · approx. 1:04 AM UTC+9 local

Felt by 41 people across nearby locations. Maximum shaking intensity MMI 5.3 (strong).

MagnitudeM5.5(mww)
Time16:04 UTC≈ 1:04 AM UTC+9
Depth38.1 kmshallow crustal
Coordinates34.861°, 137.691°
Felt by41DYFI responses· max MMI 5.3
Status✓ Reviewed by USGS· green PAGER
green Alert— no significant casualties or damage expected

On November 7, 2026 at 16:04 UTC, a magnitude 5.5 shallow crustal earthquake struck 10 km NW of Hamakita, Japan, at a depth of 38.1 km and coordinates 34.8611°, 137.6910°. The earthquake was reported felt by 41 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 5.3 (strong). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 129 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 488, placing it among routine seismic activity. The nearest populated place is Fukuroi (population 86,851).

Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Japan, a region characterized by the intersection of four tectonic plates — Pacific, Philippine Sea, Eurasian, and North American — creating multiple subduction zones. The nearest mapped fault system is the Japan Trench. View all earthquakes in Japan.

Learn more: Magnitude scale · Aftershock sequences

Nearest Populated Places

Fukuroipop. 86,851
MMI 5.0 (moderate)
Araipop. 16,975
MMI 5.0 (moderate)
Kosaipop. 57,682
MMI 5.0 (moderate)
Toyohashipop. 371,507
MMI 4.9 (moderate)
Hamamatsupop. 788,211
MMI 4.9 (moderate)
Ryuyopop. 19,756
MMI 4.9 (moderate)
Map showing earthquake epicenter at 34.86°, 137.69°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.5 earthquake near 10 km NW of Hamakita, Japan

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 41 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.5 earthquake near 10 km NW of Hamakita, Japan

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Population exposure (USGS PAGER)

Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.

Shaking intensity (MMI)DescriptionPopulation exposed
MMI 3weak1,081,780
MMI 4light10,580,847
MMI 5moderate1,383,818

Earthquake Details

Magnitude
5.5 mww
Depth
38.1 km
shallow crustal
Location
34.8611°N
137.6910°E
Felt Reports
41
DYFI responses
Intensity (MMI)
5.3
strong
Community Intensity
5.6
CDI from reports

Technical Information

Event ID
us7000twt0
Event Type
earthquake
Status
✓ Reviewed
Significance
488
Stations Used
129
Azimuthal Gap
49.0°
Min Station Distance
0.730°
RMS Residual
0.90 sec
Last Updated
2026-11-07 18:11:44 UTC

Common Questions

How strong was the magnitude 5.5 earthquake near Hamakita, Japan?

The magnitude 5.5 earthquake that struck 10 km NW of Hamakita, Japan on November 7, 2026 at 16:04 UTC had a depth of 38.1 km. It was felt by 41 people with maximum shaking intensity of MMI 5.3 (strong). For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 34.8611°, 137.6910°, which is 10 km NW of Hamakita, Japan. The nearest populated place is Fukuroi (population 86,851). View all earthquakes in Japan.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks and gradually diminish over time.

Has Japan had earthquakes this big before?

The largest recorded earthquake in Japan was the M9.1 Tohoku earthquake of March 11, 2011. Today's magnitude 5.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000twt0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, November 7, 2026). M5.5 Earthquake 10 km NW of Hamakita, Japan — November 7, 2026. Retrieved November 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000twt0/