Magnitude 4.4 earthquake strikes near Mayaguez, Mayagüez Barrio-Pueblo, Mayagüez, Puerto Rico
Sun, 18 Jul 2021, 05:04
05:04 AM | BY: EARTHQUAKEMONITOR
4.4 quake 18 Jul 12:45 am (GMT -4)
According to the United States Geological Survey, the quake hit on Sunday 18 July 2021 at 12:45 am local time at a shallow depth of 16.9 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.4 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in La Parguera (pop. 1,100) located 12 km from the epicenter, Lajas (pop. 5,300) 19 km away, Cabo Rojo (pop. 10,800) 22 km away, San German (pop. 12,100) 22 km away, Guanica (pop. 9,200) 24 km away, Sabana Grande (pop. 9,000) 26 km away, Hormigueros (pop. 11,900) 28 km away, and Mayaguez (pop. 78,600) 34 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Aibonito (pop. 8,900) located 94 km from the epicenter, and Guayama (pop. 21,600) 107 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data:
I felt this quake
Date & time: 18 Jul 12:45 am (GMT -4) local time (18 Jul 2021 04:45 GMT)
Magnitude: 4.4
Depth: 16.9 km
Epicenter latitude / longitude: 17.89°N / 67.12°W
(Caribbean Sea, Puerto Rico)Primary data source: USGS
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