M4.6 Earthquake 12 km W of Chambara, Peru — August 9, 2026
2026-08-09 04:05:44 UTC (2 hours ago) · approx. 11:05 PM UTC-5 local
Felt by 1 person across nearby locations. Aftershock of the M5.3 mainshock.
On August 9, 2026 at 04:05 UTC, a magnitude 4.6 shallow crustal earthquake struck 12 km W of Chambara, Peru, at a depth of 10.0 km and coordinates -12.0506°, -75.4906°. This earthquake was detected by 22 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — 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 5.3 mainshock that occurred 2 days ago 7 km SSW of Huayucachi, Peru. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
The epicenter is located in Peru, a region characterized by the northern Peru-Chile subduction zone, complicated by the subduction of the Nazca Ridge. The nearest mapped fault system is the Peru-Chile Trench. View all earthquakes in Peru.
Learn more: Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-75.4906°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Chambara, Peru?
The magnitude 4.6 earthquake that struck 12 km W of Chambara, Peru on August 9, 2026 at 04:05 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -12.0506°, -75.4906°, which is 12 km W of Chambara, Peru. View all earthquakes in Peru.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.3 one earlier?
No. This magnitude 4.6 earthquake is an aftershock of the larger magnitude 5.3 mainshock that occurred earlier 7 km SSW of Huayucachi, Peru. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Has Peru had earthquakes this big before?
The largest recorded earthquake in Peru was the M8.0 Arequipa earthquake of June 23, 2001. Today's magnitude 4.6 event is significantly smaller than that historical record.
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Location
Authoritative source: USGS event page (event ID: us6000tjcr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 9, 2026). M4.6 Earthquake 12 km W of Chambara, Peru — August 9, 2026. Retrieved August 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjcr/