4.0

M4.0 Earthquake 57 km NNW of Piti Village, GuamJune 26, 2026

2026-06-26 07:05:55 UTC (2026-06-26) · approx. 5:05 PM UTC+10 local

MagnitudeM4.0(mb)
Time07:05 UTC5:05 PM UTC+10
Depth186.3 kmintermediate depth
Coordinates13.927°, 144.465°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 26, 2026 at 07:05 UTC, a magnitude 4.0 intermediate depth earthquake struck 57 km NNW of Piti Village, Guam, at a depth of 186.3 km and coordinates 13.9272°, 144.4653°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.93°, 144.47°

Earthquake Details

Magnitude
4.0 mb
Depth
186.3 km
intermediate depth
Location
13.9272°N
144.4653°E

Technical Information

Event ID
us6000t9y3
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
11
Azimuthal Gap
86.0°
Min Station Distance
0.516°
RMS Residual
0.23 sec
Last Updated
2026-07-09 12:16:12 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Piti Village, Guam?

The magnitude 4.0 earthquake that struck 57 km NNW of Piti Village, Guam on June 26, 2026 at 07:05 UTC had a depth of 186.3 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000t9y3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 26, 2026). M4.0 Earthquake 57 km NNW of Piti Village, GuamJune 26, 2026. Retrieved July 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t9y3/