Moderate magnitude 4.6 earthquake at 10 km depth
16 Sep 09:41 UTC: First to report: EMSC after 13 minutes.
16 Sep 09:55: Magnitude recalculated from 4.2 to 4.6. Hypocenter depth recalculated from 29.0 to 10.0 km (from 18 to 6.2 mi). Epicenter location corrected by 9.5 km (5.9 mi) towards W.
Update Thu, 16 Sep 2021, 09:45Moderate 4.2 quake hits near La Ligua, Petorca Province, Valparaiso, Chile
4.2 quake 16 Sep 4:28 am (GMT -5)
A shallow magnitude 4.2 earthquake was reported early morning near La Ligua, Petorca Province, Valparaiso, Chile.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Thursday, September 16th, 2021, at 4:28 am local time at a shallow depth of 29 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include La Ligua (pop. 24,900) located 93 km from the epicenter.
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