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Minor earthquake: M2.87 quake has struck near Magas Arriba in Puerto Rico


Earthquake location 18.0158S, -66.7413WA minor earthquake magnitude 2.87 (ml/mb) has struck on Saturday, 2 kilometers (1 miles) from Magas Arriba in Puerto Rico. Exact location of event, longitude -66.7413 West, latitude 18.0158 North, depth = 5 km. Id of earthquake: pr2020018065. Event ids that are associated: pr2020018065. The 2.87-magnitude earthquake has occurred at 04:38:00 / 4:38 am (local time epicenter). The epicenter of the earthquake was roughly 5 km (3 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 18/01/20 / 2020-01-18 08:38:00 / January 18, 2020 @ 8:38 am.

Nearest cities/city/towns to hypocenter/epicentrum was Caguas, Patillas, Guaynabo (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the earthquake was 75 km (47 miles) from Bayamón (c. 203 500 pop), 13 km (8 miles) from Ponce (c. 152 600 pop), 77 km (48 miles) from Caguas (c. 86 800 pop), 77 km (48 miles) from Guaynabo (c. 81 400 pop), 47 km (29 miles) from Mayagüez (c. 78 600 pop).

In the past 24 hours, there have been one hundred and sixty-one, in the last 10 days five hundred and fourty, in the past 30 days seven hundred and twenty-six and in the last 365 days seven hundred and ninety-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 2 km E of Magas Arriba, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -66.7413° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.0158° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 2km E of Magas Arriba, 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 2020-01-18 08:38:00 Time when the event occurred. UTC/GMT
Updated 2020-01-23 16:48:55 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 127 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 ,pr, A comma-separated list of network contributors.
Number of Stations Used 11 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1377 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 173 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 pr2020018065 Id of event.
Event Code 2020018065 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020018065, A comma-separated list of event ids that are associated to an event.

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