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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag was detected near San Isidro in Philippines


Earthquake location 10.3605S, 126.1654WA light earthquake magnitude 4.6 (ml/mb) has struck on Wednesday, 39 kilometers (24 miles) from San Isidro in Philippines. Id of earthquake: us1000h54k. Event ids that are associated: us1000h54k. The 4.6-magnitude earthquake has occurred at 02:09:55 / 2:09 am (local time epicenter). Date and time of earthquake in UTC/GMT: 25/09/18 / 2018-09-25 18:09:55 / September 25, 2018 @ 6:09 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 31.3 km (19 miles). Exact location of earthquake, 126.1654° East, 10.3605° North, depth 31.3 km.

Close country/countries, Philippines (c. 99 900 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Surigao, Guiuan, Socorro (min 5000 pop). The epicenter was 97 km (60 miles) from Surigao (c. 87 800 pop), 89 km (55 miles) from Guiuan (c. 11 000 pop), 85 km (53 miles) from Socorro (c. 9 700 pop), 68 km (42 miles) from Dapa (c. 8 800 pop), 65 km (40 miles) from Loreto (c. 5 400 pop).

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

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. 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: 39 km NNE of San Isidro, Philippines.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 126.1654° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 10.3605° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.3 km Depth of the event in kilometers.
Place 39km 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 2018-09-25 18:09:55 Time when the event occurred. UTC/GMT
Updated 2018-10-17 20:20:36 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 326 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 3.32 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us1000h54k Id of event.
Event Code 1000h54k An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h54k, A comma-separated list of event ids that are associated to an event.

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