Minor earthquake, 3.3 mag strikes near Guanica in Puerto Rico

A minor earthquake with magnitude 3.3 (ml/mb) was reported 4 kilometers (2 miles) from Guanica in Puerto Rico on Thursday. Exact location of earthquake, -66.9448° West, 17.9406° North, depth 9 km. Id of earthquake: pr2020009006. Event ids that are associated: us70006wt5, pr2020009006. The 3.3-magnitude earthquake has occurred at 01:52:34 / 1:52 am (local time epicenter). Global date and time of event UTC/GMT: 09/01/20 / 2020-01-09 05:52:34 / January 9, 2020 @ 5:52 am. The earthquake occurred at a depth of 9 km (6 miles) below the earth’s surface.

Event epicenter was 36 km (22 miles) from Ponce (c. 152 600 pop), 36 km (22 miles) from Mayagüez (c. 78 600 pop), 64 km (40 miles) from Arecibo (c. 49 300 pop), 81 km (50 miles) from Vega Baja (c. 29 300 pop), 71 km (44 miles) from Barceloneta (c. 22 300 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Comerío, Vega Baja, Corozal (min 5000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been thirty-three, in the last 10 days one hundred and seventy-four, in the past 30 days two hundred and fifteen and in the last 365 days two hundred and eighty-eight earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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: 4 km WSW of Guanica, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-66.9448° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	17.9406° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	9 km	Depth of the event in kilometers.
Place	4km WSW of Guanica, 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	2020-01-09 05:52:34	Time when the event occurred. UTC/GMT
Updated	2020-01-09 06:30:02	Time when the event was most recently updated. UTC/GMT
Timezone offset	-240	Timezone offset from UTC in minutes at the event epicenter.
Felt	3	The total number of felt reports
CDI	2.9	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	168	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	10	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1035	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	210	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	pr2020009006	Id of event.
Event Code	2020009006	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us70006wt5,pr2020009006,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.3 mag strikes near Guanica in Puerto Rico

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