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Light earthquake: M4.3 quake has struck near Parrita in Costa Rica


Earthquake location 9.4667S, -84.4897WA light earthquake with magnitude 4.3 (ml/mb) was detected on Tuesday, 19 kilometers (12 miles) from Parrita in Costa Rica. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 14.71 km (9 miles) below the earth’s surface. The temblor was picked up at 07:34:18 / 7:34 am (local time epicenter). Unique identifier: us2000cjxz. Ids that are associated to the event: us2000cjxz. Exact location of event, longitude -84.4897 West, latitude 9.4667 North, depth = 14.71 km. Date and time of earthquake in UTC/GMT: 16/01/18 / 2018-01-16 13:34:18 / January 16, 2018 @ 1:34 pm.

Epicenter of the earthquake was 68 km (42 miles) from San José (c. 335 000 pop), 71 km (44 miles) from San Francisco (c. 55 900 pop), 68 km (42 miles) from Alajuela (c. 47 500 pop), 80 km (50 miles) from Paraíso (c. 39 700 pop), 68 km (42 miles) from Puntarenas (c. 35 700 pop), 87 km (54 miles) from San Isidro (c. 34 900 pop). Country/countries that might be effected, Costa Rica (c. 4 516 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Daniel Flores, Río Segundo, San Isidro (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 19 km WSW of Parrita, Costa Rica.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -84.4897° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 9.4667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.71 km Depth of the event in kilometers.
Place 19km WSW of Parrita, 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 2018-01-16 13:34:18 Time when the event occurred. UTC/GMT
Updated 2018-01-16 14:28:56 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 4.6 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 285 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 0.256 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 177 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 us2000cjxz Id of event.
Event Code 2000cjxz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000cjxz, A comma-separated list of event ids that are associated to an event.

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