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Minor earthquake, 3 mag has occurred near Arecibo in Puerto Rico



Earthquake location 18.552S, -66.6522WA minor earthquake with magnitude 3 (ml/mb) was reported 11 kilometers (7 miles) from Arecibo in Puerto Rico on Tuesday. The temblor was detected at 04:26:26 / 4:26 am (local time epicenter). The earthquake was roughly at a depth of 77 km (48 miles). Exact location of earthquake, -66.6522° West, 18.552° North, depth 77 km. Exact time and date of earthquake 11/04/17 / 2017-04-11 08:26:26 / April 11, 2017 @ 8:26 am UTC/GMT. Id of earthquake: pr17101007. Event ids that are associated: pr17101007.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Puerto Real, Carolina, Salinas (min 5000 pop). Earthquake epicenter was 58 km (36 miles) from San Juan (c. 418 100 pop), 55 km (34 miles) from Bayamón (c. 203 500 pop), 76 km (47 miles) from Carolina (c. 170 400 pop), 60 km (37 miles) from Ponce (c. 152 600 pop), 73 km (45 miles) from Caguas (c. 86 800 pop).

In the past 24 hours, there have been four, in the last 10 days eleven, in the past 30 days twenty-three and in the last 365 days two hundred and one earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 11 km NE of Arecibo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.6522° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.552° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 77 km Depth of the event in kilometers.
Place 11km NE of Arecibo, 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 2017-04-11 08:26:26 Time when the event occurred. UTC/GMT
Updated 2017-04-11 11:46:41 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 138 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.13744224 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 194.4 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 pr17101007 Id of event.
Event Code 17101007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17101007, A comma-separated list of event ids that are associated to an event.

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