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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near San Julian in Philippines

Earthquake location 11.739S, 125.8373WA light earthquake with magnitude 4.5 (ml/mb) was detected on Tuesday, 41 kilometers (25 miles) from San Julian in Philippines. Exact time and date of event in UTC/GMT: 04/12/17 / 2017-12-04 16:02:50 / December 4, 2017 @ 4:02 pm. Event id: us2000c2x9. Ids that are associated to the earthquake: us2000c2x9. The epicenter of the earthquake was roughly 21.76 km (14 miles) below the earth’s surface. The temblor was picked up at 00:02:50 / 12:02 am (local time epicenter). Exact location of event, longitude 125.8373 East, latitude 11.739 North, depth = 21.76 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities/towns to epicentrum/hypocenter was Gamay, Balangiga, Giporlos (min 5000 pop). Epicenter of the earthquake was 46 km (29 miles) from Borongan (c. 16 500 pop), 80 km (50 miles) from Guiuan (c. 11 000 pop), 51 km (32 miles) from Dolores (c. 9 300 pop), 93 km (58 miles) from Gamay (c. 9 100 pop), 62 km (39 miles) from Oras (c. 9 000 pop), 48 km (30 miles) from Llorente (c. 7 900 pop), 51 km (32 miles) from Can-Avid (c. 5 900 pop). Nearby country/countries that might be effected, Philippines (c. 99 900 000 pop).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 41 km E of San Julian, Philippines.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 125.8373° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 11.739° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.76 km Depth of the event in kilometers.
Place 41km E of San Julian, Philippines Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-04 16:02:50 Time when the event occurred. UTC/GMT
Updated 2017-12-17 16:02:35 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 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 4.646 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 153 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 us2000c2x9 Id of event.
Event Code 2000c2x9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000c2x9, A comma-separated list of event ids that are associated to an event.

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