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Minor earthquake, 2.81 mag strikes near Road Town in British Virgin Islands


Earthquake location 18.9373S, -64.7991WA minor earthquake with magnitude 2.81 (ml/mb) was detected on Tuesday, 60 kilometers (37 miles) from Road Town in British Virgin Islands. Exact location of earthquake, longitude -64.7991 West, latitude 18.9373 North, depth = 75 km. Exact time and date of event in UTC/GMT: 31/07/18 / 2018-07-31 06:13:04 / July 31, 2018 @ 6:13 am. Unique identifier: pr2018212027. Ids that are associated to the event: pr2018212027. The temblor was picked up at 02:13:04 / 2:13 am (local time epicenter). The earthquake occurred at a depth of 75 km (47 miles).

The epicenter was 59 km (37 miles) from Tortola (c. 23 900 pop), 68 km (42 miles) from Charlotte Amalie (c. 20 000 pop), 60 km (37 miles) from Road Town (c. 8 400 pop), 67 km (42 miles) from Cruz Bay (c. 2 700 pop). Country/countries that might be effected, British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Charlotte Amalie, Cruz Bay, Road Town (min 5000 pop).

Each year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been thirty-eight, in the last 10 days fourty, in the past 30 days fifty-seven and in the last 365 days three hundred and seventy-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

How would you describe the shaking?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 60 km NNW of Road Town, British Virgin Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -64.7991° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9373° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 75 km Depth of the event in kilometers.
Place 60km NNW 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 2018-07-31 06:13:04 Time when the event occurred. UTC/GMT
Updated 2018-07-31 13:01:59 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 121 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 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.3169 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 339 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 pr2018212027 Id of event.
Event Code 2018212027 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018212027, A comma-separated list of event ids that are associated to an event.

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