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Minor earthquake: M3.18 quake has struck near Culebra in Puerto Rico


Earthquake location 18.9448S, -65.2913WA minor earthquake magnitude 3.18 (ml/mb) has occurred on Sunday, 71 kilometers (44 miles) from Culebra in Puerto Rico. Exact time and date of earthquake 17/01/21 / 2021-01-17 13:26:50 / January 17, 2021 @ 1:26 pm UTC/GMT. Id of earthquake: pr2021017016. Event ids that are associated: pr2021017016. The 3.18-magnitude earthquake has occurred at 13:26:50 / 1:26 pm (local time epicenter). Exact location of event, longitude -65.2913 West, latitude 18.9448 North, depth = 24 km. The epicenter of the earthquake was roughly 24 km (15 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was Fajardo, Luquillo, Charlotte Amalie (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop). The epicenter was 79 km (49 miles) from Fajardo (c. 34 100 pop), 77 km (48 miles) from Charlotte Amalie (c. 20 000 pop), 78 km (48 miles) from Luquillo (c. 8 300 pop), 71 km (44 miles) from Culebra (c. 1 500 pop).

In the past 24 hours, there have been six, in the last 10 days seventeen, in the past 30 days thirty-three and in the last 365 days two hundred and two earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

Did you feel anything?

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: 71 km N of Culebra, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.18 mb The magnitude for the event.
Longitude -65.2913° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9448° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24 km Depth of the event in kilometers.
Place 71 km N of Culebra, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-17 13:26:50 Time when the event occurred. UTC/GMT
Updated 2021-01-17 14:37:08 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 156 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 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8869 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 308 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 pr2021017016 Id of event.
Event Code 2021017016 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2021017016, A comma-separated list of event ids that are associated to an event.

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