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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near San Isidro in Philippines

Earthquake location 10.3327S, 126.2304WA light earthquake with magnitude 4.5 (ml/mb) was reported 38 kilometers (24 miles) from San Isidro in Philippines on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 24/09/18 / 2018-09-24 15:44:05 / September 24, 2018 @ 3:44 pm UTC/GMT. Unique identifier: us1000h3vr. Ids that are associated to the event: us1000h3vr. The epicenter of the earthquake was roughly 24.03 km (15 miles) below the earth’s surface. Exact location of event, depth 24.03 km, 126.2304° East, 10.3327° North. The 4.5-magnitude earthquake was detected at 23:44:05 / 11:44 pm (local time epicenter).

Event epicenter was 95 km (59 miles) from Guiuan (c. 11 000 pop), 84 km (52 miles) from Socorro (c. 9 700 pop), 67 km (41 miles) from Dapa (c. 8 800 pop), 72 km (45 miles) from Loreto (c. 5 400 pop). Closest city/cities/towns to epicentrum/hypocenter was Guiuan, Socorro, Loreto (min 5000 pop). Close country/countries that might be effected, Philippines (c. 99 900 000 pop).

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

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 38 km NNE of San Isidro, Philippines.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 126.2304° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 10.3327° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.03 km Depth of the event in kilometers.
Place 38km NNE 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 2018-09-24 15:44:05 Time when the event occurred. UTC/GMT
Updated 2018-10-01 20:14:33 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 3.305 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 199 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 us1000h3vr Id of event.
Event Code 1000h3vr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h3vr, A comma-separated list of event ids that are associated to an event.

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