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Light World Earthquakes Magnitude 4-4.9

Earthquake: M 4.5 quake strikes near Jaco in Costa Rica

Earthquake location 9.4809S, -84.5509WA light earthquake magnitude 4.5 (mg/mb) has striked on Saturday, 17 kilometers (11 miles) from Jaco in Costa Rica. The temblor was reported at 14:46:42 / 2:46 pm (local time epicenter) at a depth of 10 km (6 miles). Global time of event 21/02/15 / 2015-02-21 20:46:42 / February 21, 2015 @ 8:46 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -84.5509 West, latitude 9.4809 North, depth 10 km, unique identifier, usc000tt23.

Close countries, Costa Rica (c. 4 516 000 pop). The epicenter was 72 km (45 miles) from San José (c. 335 000 pop), 73 km (46 miles) from San Francisco (c. 55 900 pop), 70 km (44 miles) from Alajuela (c. 47 500 pop), 85 km (53 miles) from Paraíso (c. 39 700 pop), 63 km (39 miles) from Puntarenas (c. 35 700 pop). Nearest city, towns to epicentrum/hypocenter was Quesada, San Isidro, Río Segundo.

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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: 17 km SSE of Jaco, Costa Rica.

More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -84.5509° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 9.4809° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 17km SSE of Jaco, Costa Rica Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-02-21 20:46:42 Time when the event occurred. UTC/GMT
Updated 2015-03-13 21:32:30 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 312 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.675 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 146 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID usc000tt23 Id of event.
Event Code c000tt23 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,usc000tt23, A comma-separated list of event ids that are associated to an event.

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