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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag strikes near Santiago in Costa Rica

Earthquake location 9.9745S, -84.457WA minor earthquake with magnitude 3.9 (ml/mb) was reported 5 kilometers (3 miles) from Santiago in Costa Rica on Tuesday. Exact time and date of event in UTC/GMT: 31/12/19 / 2019-12-31 23:09:45 / December 31, 2019 @ 11:09 pm. The temblor was picked up at 17:09:45 / 5:09 pm (local time epicenter). The earthquake was roughly at a depth of 56.44 km (35 miles). Exact location of event, longitude -84.457 West, latitude 9.9745 North, depth = 56.44 km. Event ids that are associated to the earthquake: us70006t0z. Id of event: us70006t0z.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Guácimo, Cañas, Turrialba. Epicenter of the event was 41 km (26 miles) from San José (c. 335 000 pop), 36 km (22 miles) from San Francisco (c. 55 900 pop), 27 km (17 miles) from Alajuela (c. 47 500 pop), 67 km (41 miles) from Paraíso (c. 39 700 pop), 42 km (26 miles) from Puntarenas (c. 35 700 pop), 47 km (29 miles) from Curridabat (c. 34 600 pop). Close country/countries that might be effected, Costa Rica (c. 4 516 000 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days twelve earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 5 km SSW of Santiago, Costa Rica. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -84.457° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 9.9745° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 56.44 km Depth of the event in kilometers.
Place 5km SSW of Santiago, 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 2019-12-31 23:09:45 Time when the event occurred. UTC/GMT
Updated 2020-01-01 00:07:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 234 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 0.341 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.51 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 136 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us70006t0z Id of event.
Event Code 70006t0z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70006t0z, A comma-separated list of event ids that are associated to an event.

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