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Minor mag. 3.9 earthquake - 50 km NNE of Cruz Bay, U.S. Virgin Islands (British Virgin Islands) on Saturday, 15 August 2020

Minor mag. 3.9 earthquake  - 50 km NNE of Cruz Bay, U.S. Virgin Islands (British Virgin Islands) on Saturday, 15 August 2020
Aug 15 04:25: Magnitude recalculated from 3.7 to 3.9.
Hypocenter depth recalculated from 35.0 to 30.0 km.
Date & time: Saturday, 15 August 2020 03:37 UTC
Magnitude: 3.9
Depth: 30.0 km
Epicenter latitude / longitude: 18.745°N / 64.6005°W (British Virgin Islands)
Nearest volcano: Saba (179 km / 111 mi)
Primary data source: USGS
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Sat, 15 Aug 03:37 UTCM 3.9 / 30 km50 km NNE of Cruz Bay, U.S. Virgin Islands (British Virgin Islands)USGS
Sat, 15 Aug 03:37 UTCM 3.7 / 35 kmVirgin Islands Region (British Virgin Islands)EMSC

User experience reports for this quake

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Red Hook St Thomas (124.4 km S of epicenter) [Map] / Moderate shaking (MMI V): Loud cracking sound and rumbling like a train going by
33 km S of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
St Thomas, in town / Weak shaking (MMI III): I felt a vibration, I’m in St. Thomas, in town, it lasted about 45 seconds. I was outside on balcony
St Thomas, in town / Weak shaking (MMI III): I felt a vibration, I’m in St. Thomas, in town, it lasted about 45 seconds. I was outside on balcony
Lerkenlund, St. Thomas VI / Moderate shaking (MMI V): We were asleep and my boyfriend heard the rumble. He woke me up and asked if I felt the earth quake.
Bethany St. Johns / Weak shaking (MMI III)
St Thomas USVI point pleasant resort. / Light shaking (MMI IV): I was awoken by a large bang and a continuous rumble noise as my room shook.
Tutu mall st thomas / Moderate shaking (MMI V): crazy

Significant earlier earthquakes in the same area since 1900

Minor mag. 3.9 earthquake - 50 km NNE of Cruz Bay, U.S. Virgin Islands (British Virgin Islands) on Saturday, 15 August 2020

Map of earlier quakes

 

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