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Minor earthquake 3.1 mag, 87 km N of Cruz Bay, U.S. Virgin Islands


Earthquake location 19.1155S, -64.7224WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Saturday, 87 kilometers (54 miles) from Cruz Bay in U.S. Virgin Islands. The epicenter was at a depth of 18.85 km (12 miles). The 3.1-magnitude earthquake was detected at 22:15:35 / 10:15 pm (local time epicenter). Event ids that are associated to the earthquake: us7000dj63. Id of event: us7000dj63. Date and time of earthquake in UTC/GMT: 13/03/21 / 2021-03-13 22:15:35 / March 13, 2021 @ 10:15 pm. Exact location, longitude -64.7224° West, latitude 19.1155° North, depth = 18.85 km.

Nearby country/countries that might be effected, British Virgin Islands (c. 22 000 pop). The epicenter was 76 km (47 miles) from Tortola (c. 23 900 pop), 77 km (48 miles) from Road Town (c. 8 400 pop). Closest city/cities/towns to epicentrum/hypocenter was Road Town, Tortola (min 5000 pop).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been four, in the last 10 days nine, in the past 30 days twenty-six and in the last 365 days three hundred and twenty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 87 km N of Cruz Bay, U.S. Virgin Islands. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -64.7224° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.1155° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 18.85 km Depth of the event in kilometers.
Place 87 km N of Cruz Bay, U.S. Virgin Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-03-13 22:15:35 Time when the event occurred. UTC/GMT
Updated 2021-03-13 23:49:46 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 148 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.441 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.35 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 235 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000dj63 Id of event.
Event Code 7000dj63 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000dj63, A comma-separated list of event ids that are associated to an event.

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