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Minor earthquake, 2.99 mag strikes near Charlotte Amalie in U.S. Virgin Islands



Earthquake location 18.9776S, -64.9445WA minor earthquake magnitude 2.99 (ml/mb) has struck on Friday, 70 kilometers (43 miles) from Charlotte Amalie in U.S. Virgin Islands. Exact time and date of earthquake 07/04/18 / 2018-04-07 02:19:21 / April 7, 2018 @ 2:19 am UTC/GMT. The 2.99-magnitude earthquake has occurred at 22:19:21 / 10:19 pm (local time epicenter). Unique identifier: pr2018097006. Ids that are associated to the event: pr2018097006. Exact location, longitude -64.9445° West, latitude 18.9776° North, depth = 55 km. The epicenter of the earthquake was roughly 55 km (34 miles) below the earth’s surface.

Event epicenter was 70 km (43 miles) from Tortola (c. 23 900 pop), 71 km (44 miles) from Charlotte Amalie (c. 20 000 pop), 70 km (44 miles) from Road Town (c. 8 400 pop), 74 km (46 miles) from Cruz Bay (c. 2 700 pop). Close country/countries that might be effected, British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Cruz Bay, Charlotte Amalie, Road Town (min 5000 pop).

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been nine, in the last 10 days seventeen, in the past 30 days fourty-nine and in the last 365 days four hundred and two earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 70 km N of Charlotte Amalie, U.S. Virgin Islands.

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More information

Parameter Value Description
Magnitude 2.99 mb The magnitude for the event.
Longitude -64.9445° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9776° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 55 km Depth of the event in kilometers.
Place 70km N of Charlotte Amalie, 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 2018-04-07 02:19:21 Time when the event occurred. UTC/GMT
Updated 2018-04-07 06:48:19 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 138 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pr, A comma-separated list of network contributors.
Number of Stations Used 3 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.2312 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 346 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2018097006 Id of event.
Event Code 2018097006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018097006, A comma-separated list of event ids that are associated to an event.

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