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Minor earthquake: M2.8 quake has struck near San Juan in Puerto Rico



Earthquake location 18.4874S, -66.0739WA minor earthquake magnitude 2.8 (ml/mb) has struck on Friday, 4 kilometers (2 miles) from San Juan in Puerto Rico. Exact location of event, longitude -66.0739 West, latitude 18.4874 North, depth = 99 km. Exact time and date of earthquake 14/04/17 / 2017-04-14 16:28:05 / April 14, 2017 @ 4:28 pm UTC/GMT. The temblor was detected at 12:28:05 / 12:28 pm (local time epicenter). All ids that are associated to the event: pr17104048. Unique identifier: pr17104048. The epicenter was at a depth of 99 km (62 miles).

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Earthquake epicenter was 4 km (3 miles) from San Juan (c. 418 100 pop), 13 km (8 miles) from Bayamón (c. 203 500 pop), 17 km (11 miles) from Carolina (c. 170 400 pop), 28 km (18 miles) from Caguas (c. 86 800 pop), 15 km (9 miles) from Guaynabo (c. 81 400 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Isabel Segunda, Utuado, Santa Isabel.

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

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 4 km NE of San Juan, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.0739° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.4874° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 99 km Depth of the event in kilometers.
Place 4km NE of San Juan, 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 2017-04-14 16:28:05 Time when the event occurred. UTC/GMT
Updated 2017-04-14 18:02:07 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 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.29644404 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 223.2 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 pr17104048 Id of event.
Event Code 17104048 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17104048, A comma-separated list of event ids that are associated to an event.

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