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Light earthquake, 4.5 mag was detected near Guánica in Puerto Rico


Earthquake location 17.9443S, -66.9495WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 5 kilometers (3 miles) from Guánica in Puerto Rico. Exact time and date of earthquake 28/06/20 / 2020-06-28 22:48:49 / June 28, 2020 @ 10:48 pm UTC/GMT. Event id: pr2020180032. Ids that are associated to the earthquake: pt20180052, us7000adx7, pr2020180032. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 13 km (8 miles). The 4.5-magnitude earthquake has occurred at 22:48:49 / 10:48 pm (local time epicenter). Exact location of earthquake, longitude -66.9495 West, latitude 17.9443 North, depth = 13 km.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Aguas Buenas, Ingenio, Arroyo (min 5000 pop). Epicenter of the event was 36 km (23 miles) from Ponce (c. 152 600 pop), 35 km (22 miles) from Mayagüez (c. 78 600 pop), 64 km (40 miles) from Arecibo (c. 49 300 pop), 81 km (51 miles) from Vega Baja (c. 29 300 pop), 71 km (44 miles) from Barceloneta (c. 22 300 pop), 89 km (55 miles) from Guayama (c. 21 600 pop), 15 km (9 miles) from Yauco (c. 20 300 pop).

In the past 24 hours, there have been thirty-seven, in the last 10 days seventy-seven, in the past 30 days one hundred and seventy-six and in the last 365 days two thousand, three hundred and one earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 5 km SW of Guánica, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -66.9495° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9443° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13 km Depth of the event in kilometers.
Place 5 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 22:48:49 Time when the event occurred. UTC/GMT
Updated 2020-06-29 00:09:32 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 166 The total number of felt reports
CDI 4.8 The maximum reported intensity for the event.
MMI 4.104 The maximum estimated instrumental intensity for the event.
Alert Level green 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 391 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 ,pt,us,pr, A comma-separated list of network contributors.
Number of Stations Used 31 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.098 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 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 ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2020180032 Id of event.
Event Code 2020180032 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt20180052,us7000adx7,pr2020180032, A comma-separated list of event ids that are associated to an event.

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