21 Mar 2026, 10:00 UTC · Mar 21, 6:00 AM ET · PAGER green
M5.6 earthquake 82 km WNW of San Antonio de los Cobres, Argentina
A magnitude 5.6 earthquake struck 82 km WNW of San Antonio de los Cobres, Argentina at Mar 21, 6:00 AM ET, 196 km deep, moderate – felt widely, some damage to weak buildings. 3 people reported feeling it.
How strong was the 82 km WNW of San Antonio de los Cobres, Argentina earthquake?
Magnitude 5.6 (mww), moderate – felt widely, some damage to weak buildings. Depth 196 km. Strongest estimated shaking: intensity 3.3 on the Modified Mercalli scale.
Was it felt?
3 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 2.7.
Were there aftershocks?
No earthquakes within 100 km have followed so far in our records.
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Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.
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