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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Sibolga in Indonesia

Posted by admin on April 28, 2025 0 Comments

Earthquake location 1.9058S, 98.8112WA light earthquake with magnitude 4.2 (ml/mb) was reported 18 kilometers (11 miles) from Sibolga in Indonesia on Tuesday. Exact location of earthquake, longitude 98.8112 East, latitude 1.9058 North, depth = 143.74 km. The epicenter was at a depth of 143.74 km (89 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.2-magnitude earthquake has occurred at 06:25:06 / 6:25 am (local time epicenter). Event id: us7000pu8y. Ids that are associated to the earthquake: us7000pu8y. Exact time and date of earthquake 08/04/25 / 2025-04-08 06:25:06 / April 8, 2025 @ 6:25 am UTC/GMT.

Close country/countries, Indonesia (c. 242 968 000 pop) (That might be effected). Epicenter of the event was 78 km (48 miles) from Padangsidempuan (c. 100 600 pop), 19 km (12 miles) from Sibolga (c. 79 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Padangsidempuan, Sibolga (min 5000 pop).

Every 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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days four and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that has struck near.

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. 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: 18 km N of Sibolga, Indonesia.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 98.8112° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.9058° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 143.74 km Depth of the event in kilometers.
Place 18 km N of Sibolga, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-08 06:25:06 Time when the event occurred. UTC/GMT
Updated 2025-04-28 11:15:22 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 19 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.789 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.39 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 123 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 us7000pu8y Id of event.
Event Code 7000pu8y An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000pu8y, A comma-separated list of event ids that are associated to an event.

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