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Minor earthquake 2.9 mag, Puerto Rico region



Earthquake location 18.7835S, -66.0845WA minor earthquake magnitude 2.9 (ml/mb) has struck on Tuesday, Puerto Rico region kilometers (0 miles) from Puerto Rico region. Date and time of earthquake in UTC/GMT: 21/03/17 / 2017-03-21 21:07:44 / March 21, 2017 @ 9:07 pm. All ids that are associated to the event: pr17080009. Unique identifier: pr17080009. The earthquake occurred at a depth of 42 km (26 miles) below the earth’s surface. The 2.9-magnitude earthquake has occurred at 21:07:44 / 9:07 pm (local time epicenter). Exact location of earthquake, longitude -66.0845 West, latitude 18.7835 North, depth = 42 km.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 35 km (22 miles) from San Juan (c. 418 100 pop), 43 km (27 miles) from Bayamón (c. 203 500 pop), 47 km (29 miles) from Carolina (c. 170 400 pop), 61 km (38 miles) from Caguas (c. 86 800 pop), 47 km (29 miles) from Guaynabo (c. 81 400 pop). Nearest cities/city/villages to epicentrum/hypocenter was Humacao, Cayey, Arecibo (min 5000 pop).

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

Questions or comments?

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

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -66.0845° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7835° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42 km Depth of the event in kilometers.
Place Puerto Rico region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-21 21:07:44 Time when the event occurred. UTC/GMT
Updated 2017-03-22 04:43:12 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 129 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.52012455 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 266.4 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 pr17080009 Id of event.
Event Code 17080009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17080009, A comma-separated list of event ids that are associated to an event.

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