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Light earthquake: M4.2 quake has struck near Biri in Philippines

Earthquake location 12.818S, 124.5577WA light earthquake magnitude 4.2 (ml/mb) strikes 25 kilometers (16 miles) from Biri in Philippines on Friday. Exact location, longitude 124.5577° East, latitude 12.818° North, depth = 104.14 km. The 4.2-magnitude earthquake was detected at 05:47:17 / 5:47 am (local time epicenter). Unique identifier: us1000jchf. Ids that are associated to the event: us1000jchf. Exact time and date of event in UTC/GMT: 28/02/19 / 2019-02-28 21:47:17 / February 28, 2019 @ 9:47 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 104.14 km (65 miles) below the earth’s surface.

The epicenter was 64 km (40 miles) from Sorsogon (c. 82 700 pop), 84 km (52 miles) from Calbayog City (c. 67 900 pop), 37 km (23 miles) from Catarman (c. 47 400 pop), 76 km (47 miles) from Bulan (c. 28 500 pop), 58 km (36 miles) from Irosin (c. 20 700 pop), 57 km (35 miles) from Laoang (c. 16 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Virac, Bangkirohan, Cumadcad (min 5000 pop). Nearby country/countries, Philippines (c. 99 900 000 pop) (That might be effected).

Each year there are an estimated 13,000 light earthquakes in the world. 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 eight 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.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 25 km NE of Biri, Philippines.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 124.5577° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 12.818° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 104.14 km Depth of the event in kilometers.
Place 25km NE of Biri, Philippines Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-02-28 21:47:17 Time when the event occurred. UTC/GMT
Updated 2019-03-08 23:24:53 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 271 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 3.746 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 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 us1000jchf Id of event.
Event Code 1000jchf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000jchf, A comma-separated list of event ids that are associated to an event.

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