4.9

M4.9 Earthquake 50 km E of Noda, JapanJuly 14, 2026

2026-07-14 08:07:30 UTC (12 hours ago) · approx. 5:07 PM UTC+9 local

Felt by 2 people across nearby locations. Aftershock of the M6.0 mainshock.

MagnitudeM4.9(mb)
Time08:07 UTC5:07 PM UTC+9
Depth44.5 kmshallow crustal
Coordinates40.166°, 142.407°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On July 14, 2026 at 08:07 UTC, a magnitude 4.9 shallow crustal earthquake struck 50 km E of Noda, Japan, at a depth of 44.5 km and coordinates 40.1657°, 142.4075°. This earthquake was detected by 84 seismic stations with good location accuracy and was assigned a USGS significance rating of 370, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 6.0 mainshock that occurred 13 days ago 49 km E of Noda, Japan. Since the mainshock, the USGS has recorded 6 aftershocks in this area. Aftershock activity is expected to continue for weeks to months as stresses on surrounding faults redistribute.

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

Map showing earthquake epicenter at 40.17°, 142.41°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 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 M4.9 earthquake near 50 km E of Noda, Japan

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

Earthquake Details

Magnitude
4.9 mb
Depth
44.5 km
shallow crustal
Location
40.1657°N
142.4075°E
Felt Reports
2
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
us7000t09z
Event Type
earthquake
Status
✓ Reviewed
Significance
370
Stations Used
84
Azimuthal Gap
126.0°
Min Station Distance
1.199°
RMS Residual
0.66 sec
Last Updated
2026-07-14 11:29:35 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Noda, Japan?

The magnitude 4.9 earthquake that struck 50 km E of Noda, Japan on July 14, 2026 at 08:07 UTC had a depth of 44.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 40.1657°, 142.4075°, which is 50 km E of Noda, Japan. View all earthquakes in Japan.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M6.0 one earlier?

No. This magnitude 4.9 earthquake is an aftershock of the larger magnitude 6.0 mainshock that occurred earlier 49 km E of Noda, Japan. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000t09z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 14, 2026). M4.9 Earthquake 50 km E of Noda, JapanJuly 14, 2026. Retrieved July 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t09z/