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Light earthquake, 4 mag was detected near Road Town in British Virgin Islands


Earthquake location 19.041S, -64.815WA light earthquake with magnitude 4 (ml/mb) was detected on Monday, 72 kilometers (45 miles) from Road Town in British Virgin Islands. All ids that are associated to the event: pt18212050. Unique identifier: pt18212050. Exact location of earthquake, longitude -64.815 West, latitude 19.041 North, depth = 10 km. Global date and time of event UTC/GMT: 31/07/18 / 2018-07-31 02:59:38 / July 31, 2018 @ 2:59 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles). The 4-magnitude earthquake was detected at 22:59:38 / 10:59 pm (local time epicenter).

Close country/countries, British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop) (That might be effected). Epicenter of the event was 71 km (44 miles) from Tortola (c. 23 900 pop), 79 km (49 miles) from Charlotte Amalie (c. 20 000 pop), 71 km (44 miles) from Road Town (c. 8 400 pop), 79 km (49 miles) from Cruz Bay (c. 2 700 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Cruz Bay, Charlotte Amalie, Road Town.

In the past 24 hours, there have been eleven, in the last 10 days thirteen, in the past 30 days fourty and in the last 365 days three hundred and fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 72 km NNW of Road Town, British Virgin Islands.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -64.815° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.041° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 72km 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 02:59:38 Time when the event occurred. UTC/GMT
Updated 2018-07-31 03:06:27 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 246 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pt The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt, A comma-separated list of network contributors.
Number of Stations Used 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 pt18212050 Id of event.
Event Code 18212050 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt18212050, A comma-separated list of event ids that are associated to an event.

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