4.2

M4.2 Earthquake 84 km N of Ollagüe, ChileJuly 15, 2026

2026-07-15 11:54:15 UTC (2026-07-15) · approx. 6:54 AM UTC-5 local

MagnitudeM4.2(mb)
Time11:54 UTC6:54 AM UTC-5
Depth142.4 kmintermediate depth
Coordinates-20.464°, -68.264°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 15, 2026 at 11:54 UTC, a magnitude 4.2 intermediate depth earthquake struck 84 km N of Ollagüe, Chile, at a depth of 142.4 km and coordinates -20.4638°, -68.2642°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -20.46°, -68.26°

Earthquake Details

Magnitude
4.2 mb
Depth
142.4 km
intermediate depth
Location
-20.4638°N
-68.2642°E

Technical Information

Event ID
us7000t0mj
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
24
Azimuthal Gap
63.0°
Min Station Distance
0.894°
RMS Residual
1.06 sec
Last Updated
2026-08-03 11:54:04 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Ollagüe, Chile?

The magnitude 4.2 earthquake that struck 84 km N of Ollagüe, Chile on July 15, 2026 at 11:54 UTC had a depth of 142.4 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000t0mj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 15, 2026). M4.2 Earthquake 84 km N of Ollagüe, ChileJuly 15, 2026. Retrieved August 3, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t0mj/