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Minor World Earthquakes Magnitude -3.9

Earthquake: M 3.4 quake strikes near San Juan in Puerto Rico


Earthquake location 19.7064S, -66.0494WA minor earthquake magnitude 3.4 (mg/mb) was reported Saturday, 137 kilometers (85 miles) from San Juan in Puerto Rico. The temblor was reported at 03:08:26 / 3:08 am (local time epicenter) at a depth of 39 km (24 miles). Global time of event 21/03/15 / 2015-03-21 07:08:26 / March 21, 2015 @ 7:08 am UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -66.0494 West, latitude 19.7064 North, depth 39 km, unique identifier, pr15080002.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 137 km N of San Juan, Puerto Rico.


More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -66.0494° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.7064° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39 km Depth of the event in kilometers.
Place 137km 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 2015-03-21 07:08:26 Time when the event occurred. UTC/GMT
Updated 2015-03-21 11:59:51 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 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.38879543 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 298.8 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 pr15080002 Id of event.
Event Code 15080002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15080002, A comma-separated list of event ids that are associated to an event.

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