Minor earthquake, 3.22 mag strikes near Guánica in Puerto Rico

A minor earthquake magnitude 3.22 (ml/mb) has occurred on Sunday, 6 kilometers (4 miles) from Guánica in Puerto Rico. The 3.22-magnitude earthquake has occurred at 01:37:03 / 1:37 am (local time epicenter). Exact location, longitude -66.9581° West, latitude 17.9383° North, depth = 6 km. The epicenter was at a depth of 6 km (4 miles). Event ids that are associated to the earthquake: us7000ai4d, pr2020187001. Id of event: pr2020187001. Date and time of earthquake in UTC/GMT: 05/07/20 / 2020-07-05 01:37:03 / July 5, 2020 @ 1:37 am.

Epicenter of the earthquake was 37 km (23 miles) from Ponce (c. 152 600 pop), 35 km (22 miles) from Mayagüez (c. 78 600 pop), 65 km (40 miles) from Arecibo (c. 49 300 pop), 72 km (45 miles) from Barceloneta (c. 22 300 pop), 16 km (10 miles) from Yauco (c. 20 300 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Aibonito, Coco, Barranquitas (min 5000 pop).

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been nineteen, in the last 10 days one hundred and thirty-nine, in the past 30 days two hundred and fourty-three and in the last 365 days two thousand, three hundred and ninety-five earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 6 km SW of Guánica, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.22 mb	The magnitude for the event.
Longitude	-66.9581° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	17.9383° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6 km	Depth of the event in kilometers.
Place	6 km SW of Guánica, 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	2020-07-05 01:37:03	Time when the event occurred. UTC/GMT
Updated	2020-07-05 02:27:20	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	160	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	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.0871	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.14 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	204	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	pr2020187001	Id of event.
Event Code	2020187001	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000ai4d,pr2020187001,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.22 mag strikes near Guánica in Puerto Rico

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