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Light earthquake: M4.5 quake has struck near San Isidro in Philippines


Earthquake location 10.4092S, 126.748WA light earthquake magnitude 4.5 (ml/mb) has struck on Saturday, 85 km ENE of San Isidro, Philippines (53 miles). Exact time and date of event in UTC/GMT: 18/02/17 / 2017-02-18 07:01:28 / February 18, 2017 @ 7:01 am. The epicenter was at a depth of 63.14 km (39 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 15:01:28 / 3:01 pm (local time epicenter). Exact location of earthquake, 126.748° East, 10.4092° North, depth 63.14 km. Event id: us100085q1. Ids that are associated to the earthquake: us100085q1.

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 85 km ENE of San Isidro, Philippines.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 126.748° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 10.4092° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 63.14 km Depth of the event in kilometers.
Place 85km ENE of San Isidro, Philippines Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-18 07:01:28 Time when the event occurred. UTC/GMT
Updated 2017-03-05 13:10:23 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 16.455 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 133 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 us100085q1 Id of event.
Event Code 100085q1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100085q1, A comma-separated list of event ids that are associated to an event.

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