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Minor earthquake, 2.8 mag was detected near Loiza in Puerto Rico



Earthquake location 18.9013S, -65.86WA minor earthquake magnitude 2.8 (ml/mb) strikes 52 kilometers (32 miles) from Loiza in Puerto Rico on Monday. Date and time of earthquake in UTC/GMT: 12/10/15 / 2015-10-12 18:49:29 / October 12, 2015 @ 6:49 pm. The temblor was reported at 14:49:29 / 2:49 pm (local time epicenter). Event ids that are associated to the earthquake: pr15285009. Id of event: pr15285009. Exact location of event, depth 24 km, -65.86° West, 18.9013° North. The epicenter of the earthquake was roughly 24 km (15 miles) below the earth’s surface.

Event epicenter was 55 km (34 miles) from San Juan (c. 418 100 pop), 64 km (40 miles) from Bayamón (c. 203 500 pop), 59 km (37 miles) from Carolina (c. 170 400 pop), 77 km (48 miles) from Caguas (c. 86 800 pop), 66 km (41 miles) from Guaynabo (c. 81 400 pop). Closest city/cities/towns to epicentrum/hypocenter was Caguas, Aguas Buenas, Vega Baja (min 5000 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

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

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 52 km N of Loiza, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -65.86° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9013° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24 km Depth of the event in kilometers.
Place 52km N of Loiza, 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 2015-10-12 18:49:29 Time when the event occurred. UTC/GMT
Updated 2015-10-12 21:23:18 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 121 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.62522744 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 241.2 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 pr15285009 Id of event.
Event Code 15285009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15285009, A comma-separated list of event ids that are associated to an event.

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