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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Charlotte Amalie in U.S. Virgin Islands

Earthquake location 18.878S, -65.158WA light earthquake with magnitude 4.1 (ml/mb) was reported 64 kilometers (40 miles) from Charlotte Amalie in U.S. Virgin Islands on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: pt18273001. Event ids that are associated: pt18273001. Global time and date of event 30/09/18 / 2018-09-30 23:29:42 / September 30, 2018 @ 11:29 pm UTC/GMT. The temblor was picked up at 19:29:42 / 7:29 pm (local time epicenter). Exact location of earthquake, -65.158° West, 18.878° North, depth 20 km. The earthquake occurred at a depth of 20 km (12 miles).

Epicenter of the event was 81 km (50 miles) from Fajardo (c. 34 100 pop), 76 km (47 miles) from Tortola (c. 23 900 pop), 64 km (40 miles) from Charlotte Amalie (c. 20 000 pop), 90 km (56 miles) from Río Grande (c. 13 500 pop), 86 km (54 miles) from Isabel Segunda (c. 9 300 pop), 76 km (47 miles) from Road Town (c. 8 400 pop). Nearest cities/city/villages to epicentrum/hypocenter was Loíza, Río Grande, Isabel Segunda (min 5000 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).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days fourteen, in the past 30 days thirty-four and in the last 365 days four hundred and thirty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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. 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: 64 km NNW of Charlotte Amalie, U.S. Virgin Islands.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -65.158° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.878° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 64km NNW 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 2018-09-30 23:29:42 Time when the event occurred. UTC/GMT
Updated 2018-09-30 23:33:14 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 259 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 15 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 pt18273001 Id of event.
Event Code 18273001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt18273001, A comma-separated list of event ids that are associated to an event.

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