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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 64 km WSW of Tobelo, Indonesia

Earthquake location 1.498S, 127.4726WA light earthquake with magnitude 4.2 (ml/mb) was reported 64 kilometers (40 miles) from Tobelo in Indonesia on Sunday. Event id: us7000ddn6. Ids that are associated to the earthquake: us7000ddn6. The earthquake occurred at a depth of 123.8 km (77 miles). The 4.2-magnitude earthquake has occurred at 21:41:35 / 9:41 pm (local time epicenter). Exact location of earthquake, 127.4726° East, 1.498° North, depth 123.8 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 21/02/21 / 2021-02-21 21:41:35 / February 21, 2021 @ 9:41 pm UTC/GMT.

Nearest cities/city/villages to epicentrum/hypocenter was Sofifi, Ternate, Tobelo (min 5000 pop). The epicenter was 79 km (49 miles) from Ternate (c. 101 700 pop), 85 km (53 miles) from Sofifi (c. 36 200 pop), 65 km (40 miles) from Tobelo (c. 10 000 pop). Close country/countries that might be effected, Indonesia (c. 242 968 000 pop).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days five and in the last 365 days ninety 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.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 64 km WSW of Tobelo, Indonesia. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 127.4726° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.498° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 123.8 km Depth of the event in kilometers.
Place 64 km WSW 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 2021-02-21 21:41:35 Time when the event occurred. UTC/GMT
Updated 2021-03-15 03:53:35 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.729 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 131 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 us7000ddn6 Id of event.
Event Code 7000ddn6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000ddn6, A comma-separated list of event ids that are associated to an event.

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