Minor earthquake: M3 quake has struck near Guánica in Puerto Rico

A minor earthquake magnitude 3 (ml/mb) has struck on Sunday, 7 kilometers (4 miles) from Guánica in Puerto Rico. Exact time and date of earthquake 28/06/20 / 2020-06-28 22:34:16 / June 28, 2020 @ 10:34 pm UTC/GMT. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The 3-magnitude earthquake has occurred at 22:34:16 / 10:34 pm (local time epicenter). Exact location of event, depth 10 km, -66.9511° West, 17.9144° North. Unique identifier: us7000adwz. Ids that are associated to the event: us7000adwz.

Closest city/cities/towns to epicentrum/hypocenter was Aibonito, Manatí, Barranquitas (min 5000 pop). The epicenter was 37 km (23 miles) from Ponce (c. 152 600 pop), 38 km (23 miles) from Mayagüez (c. 78 600 pop), 67 km (42 miles) from Arecibo (c. 49 300 pop), 74 km (46 miles) from Barceloneta (c. 22 300 pop), 17 km (11 miles) from Yauco (c. 20 300 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been thirty-five, in the last 10 days seventy-five, in the past 30 days one hundred and seventy-three and in the last 365 days two thousand, two hundred and eighty-five earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

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: 7 km SW of Guánica, Puerto Rico.

More information

Parameter	Value	Description
Magnitude	3 mb	The magnitude for the event.
Longitude	-66.9511° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	17.9144° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	7 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	2020-06-28 22:34:16	Time when the event occurred. UTC/GMT
Updated	2020-06-28 22:50:56	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	138	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.104	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.54 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	218	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	us7000adwz	Id of event.
Event Code	7000adwz	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000adwz,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3 quake has struck near Guánica in Puerto Rico

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