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Moderate earthquake: M5.4 quake has struck near Cruz Bay in U.S. Virgin Islands

Posted by admin on January 25, 2021 0 Comments

Earthquake location 18.2516S, -64.0708WA moderate earthquake magnitude 5.4 (ml/mb) has struck on Sunday, 76 kilometers (47 miles) from Cruz Bay in U.S. Virgin Islands. Exact time and date of earthquake 24/01/21 / 2021-01-24 23:21:41 / January 24, 2021 @ 11:21 pm UTC/GMT. The 5.4-magnitude earthquake has occurred at 23:21:41 / 11:21 pm (local time epicenter). Unique identifier: pr2021024007. Ids that are associated to the event: us7000d30b, pr2021024007. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -64.0708° West, latitude 18.2516° North, depth = 94 km. The epicenter of the earthquake was roughly 94 km (58 miles) below the earth’s surface.

Closest city/cities/towns to epicentrum/hypocenter was Cul de Sac, The Valley, Marigot (min 5000 pop). Nearby country/countries that might be effected, Saint Martin (c. 36 000 pop), Sint Maarten (c. 37 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop). The epicenter was 92 km (57 miles) from Saint Croix (c. 50 600 pop), 60 km (37 miles) from Tortola (c. 23 900 pop), 91 km (57 miles) from Charlotte Amalie (c. 20 000 pop), 109 km (68 miles) from Cul de Sac (c. 8 500 pop), 61 km (38 miles) from Road Town (c. 8 400 pop), 106 km (66 miles) from Marigot (c. 5 700 pop), 77 km (48 miles) from Cruz Bay (c. 2 700 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate quakes in the world each year. In the past 24 hours, there have been four, in the last 10 days eleven, in the past 30 days eighteen and in the last 365 days one hundred earthquakes of magnitude 3.0 or greater that has occurred 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: 76 km E of Cruz Bay, U.S. Virgin Islands.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -64.0708° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.2516° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 94 km Depth of the event in kilometers.
Place 76 km E of Cruz Bay, 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 2021-01-24 23:21:41 Time when the event occurred. UTC/GMT
Updated 2021-01-25 00:24:01 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 129 The total number of felt reports
CDI 4.1 The maximum reported intensity for the event.
MMI 4.275 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 502 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 ,us,pr, A comma-separated list of network contributors.
Number of Stations Used 28 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.0163 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 185 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 pr2021024007 Id of event.
Event Code 2021024007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000d30b,pr2021024007, A comma-separated list of event ids that are associated to an event.

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