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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.4 mag has occurred near La Alianza in Puerto Rico

Earthquake location 18.3705S, -66.6003WA minor earthquake with magnitude 3.4 (ml/mb) was detected on Monday, 2 kilometers (1 miles) from La Alianza in Puerto Rico. The earthquake occurred at a depth of 133 km (83 miles) below the earth’s surface. Exact location of earthquake, -66.6003° West, 18.3705° North, depth 133 km. Exact time and date of earthquake 21/11/16 / 2016-11-21 04:27:12 / November 21, 2016 @ 4:27 am UTC/GMT. The temblor was reported at 00:27:12 / 12:27 am (local time epicenter). All ids that are associated to the event: pr16326003. Unique identifier: pr16326003.

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). The epicenter was 53 km (33 miles) from San Juan (c. 418 100 pop), 47 km (29 miles) from Bayamón (c. 203 500 pop), 68 km (42 miles) from Carolina (c. 170 400 pop), 40 km (25 miles) from Ponce (c. 152 600 pop), 60 km (37 miles) from Caguas (c. 86 800 pop). Nearest cities/city/towns to hypocenter/epicentrum was Río Grande, Las Piedras, Loíza (min 5000 pop).

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 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 fourteen and in the last 365 days one hundred and fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 2 km S of La Alianza, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -66.6003° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.3705° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 133 km Depth of the event in kilometers.
Place 2km S of La Alianza, 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 2016-11-21 04:27:12 Time when the event occurred. UTC/GMT
Updated 2016-11-21 08:06:04 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 178 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 0.14642539 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 190.8 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 pr16326003 Id of event.
Event Code 16326003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16326003, A comma-separated list of event ids that are associated to an event.

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