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Minor earthquake, 3.17 mag has occurred near Culebra in Puerto Rico

Earthquake location 18.9211S, -65.343WA minor earthquake with magnitude 3.17 (ml/mb) was reported 68 kilometers (42 miles) from Culebra in Puerto Rico on Sunday. The temblor was reported at 17:42:09 / 5:42 pm (local time epicenter). Global time and date of event 17/01/21 / 2021-01-17 17:42:09 / January 17, 2021 @ 5:42 pm UTC/GMT. Event id: pr2021017020. Ids that are associated to the earthquake: pr2021017020. The earthquake occurred at a depth of 16 km (10 miles). Exact location, longitude -65.343° West, latitude 18.9211° North, depth = 16 km.

Nearest cities/city/towns to hypocenter/epicentrum was Ceiba, Río Grande, Loíza (min 5000 pop). Epicenter of the event was 74 km (46 miles) from Fajardo (c. 34 100 pop), 78 km (48 miles) from Charlotte Amalie (c. 20 000 pop), 79 km (49 miles) from Río Grande (c. 13 500 pop), 73 km (45 miles) from Luquillo (c. 8 300 pop), 80 km (50 miles) from Ceiba (c. 6 300 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop).

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

Did you feel anything?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 68 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.17 mb The magnitude for the event.
Longitude -65.343° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9211° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 16 km Depth of the event in kilometers.
Place 68 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 17:42:09 Time when the event occurred. UTC/GMT
Updated 2021-01-17 18:19:43 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 155 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 3 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8501 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 324 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 pr2021017020 Id of event.
Event Code 2021017020 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2021017020, A comma-separated list of event ids that are associated to an event.

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