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Minor earthquake 2.8 mag, 11 km N of San Juan, Puerto Rico



Earthquake location 18.568S, -66.1262WA minor earthquake magnitude 2.8 (ml/mb) has struck on Friday, 11 kilometers (7 miles) from San Juan in Puerto Rico. The earthquake was roughly at a depth of 90 km (56 miles). The temblor was detected at 06:17:05 / 6:17 am (local time epicenter). Exact location of event, depth 90 km, -66.1262° West, 18.568° North. Event ids that are associated to the earthquake: pr15296004. Id of event: pr15296004. Exact time and date of earthquake 23/10/15 / 2015-10-23 10:17:05 / October 23, 2015 @ 10:17 am UTC/GMT.

Nearest cities/city/villages to epicentrum/hypocenter was Camuy, Hatillo, Santa Isabel (min 5000 pop). Epicenter of the earthquake was 12 km (7 miles) from San Juan (c. 418 100 pop), 19 km (12 miles) from Bayamón (c. 203 500 pop), 27 km (17 miles) from Carolina (c. 170 400 pop), 38 km (24 miles) from Caguas (c. 86 800 pop), 23 km (15 miles) from Guaynabo (c. 81 400 pop). Close 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. In the past 24 hours, there have been one, in the last 10 days seven, in the past 30 days twenty-nine and in the last 365 days three hundred and sixty earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 1,300,000 minor earthquakes in the world.

Did you feel the quake?

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: 11 km N of San Juan, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.1262° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.568° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 90 km Depth of the event in kilometers.
Place 11km N 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 2015-10-23 10:17:05 Time when the event occurred. UTC/GMT
Updated 2015-10-23 11:40:53 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.39076715 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.27 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 208.8 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 pr15296004 Id of event.
Event Code 15296004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15296004, A comma-separated list of event ids that are associated to an event.

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