Moderate earthquake of magnitude 4.7 reported 94 km south of San Jose, Costa Rica
Sat, 11 Mar 2023, 17:46 17:46 PM | BY: EARTHQUAKEMONITOR
A shallow magnitude 4.7 earthquake was reported in the morning near San Jose, San José, Provincia de San José, Costa Rica.
4.7 quake 11 Mar 11:08 am (GMT -6)
According to the United States Geological Survey, the quake hit on Saturday, March 11th, 2023, at 11:08 am local time at a shallow depth of 13.6 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. Magnitude and other quake parameters can still change in the coming hours as the agency continues to process seismic data.
A second report was later issued by The Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 4.7 earthquake as well. Other agencies reporting the same quake include The Incorporated Research Institutions for Seismology (IRIS) at magnitude 4.7, the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.7, the German Research Centre for Geosciences (GFZ) at magnitude 4.7, and the citizen-seismograph network of RaspberryShake at magnitude 4.7.
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 Quepos (pop. 7,800) located 38 km from the epicenter, San Isidro (pop. 34,900) 54 km away, and Tejar (pop. 22,400) 74 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include San Rafael Abajo (pop. 27,400) located 85 km from the epicenter, Aserri (pop. 25,900) 85 km away, San Miguel (pop. 28,800) 87 km away, Paraiso (pop. 39,700) 87 km away, Cartago (pop. 26,600) 88 km away, Curridabat (pop. 34,600) 92 km away, and San Jose (pop. 335,000) 94 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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I felt this quake
Date & time: Mar 11, 2023 11:08 am (GMT -6) local time (11 Mar 2023 17:08 GMT)
Depth: 13.6 km
Epicenter latitude / longitude: 9.09°N / 84.1°W (Costa Rica)
Primary data source: USGS
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