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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Tobelo in Indonesia

Posted by admin on August 27, 2025 0 Comments

Earthquake location 1.7921S, 127.4166WA light earthquake magnitude 4.1 (ml/mb) has occurred on Monday, 66 kilometers (41 miles) from Tobelo in Indonesia. The temblor was picked up at 00:21:36 / 12:21 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 133.797 km, 127.4166° East, 1.7921° North. Exact time and date of earthquake 04/08/25 / 2025-08-04 00:21:36 / August 4, 2025 @ 12:21 am UTC/GMT. The epicenter was at a depth of 133.797 km (83 miles). All ids that are associated to the event: us7000qrb0. Unique identifier: us7000qrb0.

Epicenter of the earthquake was 66 km (41 miles) from Tobelo (c. 10 000 pop). Nearby country/countries that might be effected, Indonesia (c. 242 968 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Tobelo.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 66 km W of Tobelo, Indonesia.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 127.4166° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.7921° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 133.797 km Depth of the event in kilometers.
Place 66 km W of Tobelo, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-04 00:21:36 Time when the event occurred. UTC/GMT
Updated 2025-08-27 21:29:44 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 259 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 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.015 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 177 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 us7000qrb0 Id of event.
Event Code 7000qrb0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qrb0, A comma-separated list of event ids that are associated to an event.

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