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Minor earthquake: M3.8 quake has struck near Road Town in British Virgin Islands

Posted by admin on December 20, 2017 0 Comments

Earthquake location 18.8321S, -64.7345WA minor earthquake magnitude 3.8 (ml/mb) has struck on Wednesday, 37 kilometers (23 miles) from Road Town in British Virgin Islands. Event id: pr2017354007. Ids that are associated to the earthquake: pr2017354007, us1000btut. The earthquake was roughly at a depth of 63 km (39 miles). Exact location of event, longitude -64.7345 West, latitude 18.8321 North, depth = 63 km. The 3.8-magnitude earthquake has occurred at 14:25:04 / 2:25 pm (local time epicenter). Exact time and date of event in UTC/GMT: 20/12/17 / 2017-12-20 18:25:04 / December 20, 2017 @ 6:25 pm.

Event epicenter was 46 km (28 miles) from Tortola (c. 23 900 pop), 58 km (36 miles) from Charlotte Amalie (c. 20 000 pop), 47 km (29 miles) from Road Town (c. 8 400 pop), 56 km (35 miles) from Cruz Bay (c. 2 700 pop), 84 km (52 miles) from Culebra (c. 1 500 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Culebra, Charlotte Amalie, Cruz Bay.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days thirteen and in the last 365 days four hundred and seven earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 37 km N of Road Town, British Virgin Islands.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -64.7345° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8321° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 63 km Depth of the event in kilometers.
Place 37km N of Road Town, British 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 2017-12-20 18:25:04 Time when the event occurred. UTC/GMT
Updated 2017-12-20 19:03:18 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 222 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,us, A comma-separated list of network contributors.
Number of Stations Used 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.5895 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 341 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 pr2017354007 Id of event.
Event Code 2017354007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017354007,us1000btut, A comma-separated list of event ids that are associated to an event.

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