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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake 5.1 mag, 5 km SSE of Guanica, Puerto Rico

Earthquake location 17.927S, -66.886WA moderate earthquake magnitude 5.1 (ml/mb) has occurred on Saturday, 5 kilometers (3 miles) from Guanica in Puerto Rico. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 28/12/19 / 2019-12-28 22:35:38 / December 28, 2019 @ 10:35 pm. Id of earthquake: pt19362001. Event ids that are associated: pt19362001. The earthquake was roughly at a depth of 2.7 km (2 miles). Exact location of event, longitude -66.886 West, latitude 17.927 North, depth = 2.7 km. The temblor was picked up at 18:35:38 / 6:35 pm (local time epicenter).

The epicenter was 102 km (63 miles) from San Juan (c. 418 100 pop), 93 km (58 miles) from Bayamón (c. 203 500 pop), 30 km (19 miles) from Ponce (c. 152 600 pop), 95 km (59 miles) from Caguas (c. 86 800 pop), 95 km (59 miles) from Guaynabo (c. 81 400 pop), 41 km (25 miles) from Mayagüez (c. 78 600 pop), 104 km (65 miles) from Trujillo Alto (c. 54 200 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Maunabo, Trujillo Alto, Gurabo. Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been two, in the last 10 days nine, in the past 30 days seventeen and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 1320 moderate quakes in the world each year.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 5 km SSE of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -66.886° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.927° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.7 km Depth of the event in kilometers.
Place 5km SSE 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 2019-12-28 22:35:38 Time when the event occurred. UTC/GMT
Updated 2019-12-28 22:40:36 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 2.7 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 401 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pt The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt, A comma-separated list of network contributors.
Number of Stations Used 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pt19362001 Id of event.
Event Code 19362001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt19362001, A comma-separated list of event ids that are associated to an event.

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