Amahai Indonesia Earthquake today 5.0 - 214 km 2022-12-07 06:53:18

 5.0 - 214 km E of Amahai, Indonesia

2022-12-07 06:53:18 (UTC)3.406°S 130.849°E30.0 km profundity

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Amahai, Maluku, Indonesia

214.5 km (133.3 mi) WPopulation: 47653

Sorong, West Papua, Indonesia

284.9 km (177 mi) NPopulation: 125535

Ambon, Maluku, Indonesia

297.9 km (185.1 mi) WPopulation: 355596

Tual, Maluku, Indonesia

325.3 km (202.1 mi) SEPopulation: 39502

Manokwari, West Papua, Indonesia

456 km (283.3 mi) NEPopulation: 53190

Distance and course from focal point to local spot.

Structural Synopsis

Seismotectonics of the New Guinea Area and Area

The Australia-Pacific plate limit is more than 4000 km long on the northern edge, from the Sunda (Java) channel in the west to the Solomon Islands in the east. The eastern area is more than 2300 km long, expanding west from upper east of the Australian landmass and the Coral Ocean until it meets the east bank of Papua New Guinea. The limit is overwhelmed by the overall toward the north subduction of the Australia plate.

Along the South Solomon channel, the Australia plate unites with the Pacific plate at a pace of roughly 95 mm/yr towards the east-upper east. Seismicity along the channel is overwhelmingly connected with subduction tectonics and enormous quakes are normal: there have been 13 M7.5+ tremors recorded beginning around 1900. On April 1, 2007, a M8.1 interplate megathrust seismic tremor happened at the western finish of the channel, producing a torrent and killing something like 40 individuals. This was the third M8.1 megathrust occasion related with this subduction zone in the previous 100 years; the other two happened in 1939 and 1977.

Further east at the New England channel, the overall movements of a few microplates encompassing the Australia-Pacific limit, including north-south situated ocean bottom spreading in the Woodlark Bowl south of the Solomon Islands, keep up with the overall toward the north subduction of Australia-partnered lithosphere underneath Pacific-subsidiary lithosphere. The vast majority of the huge and incredible tremors east of New Guinea are connected with this subduction; such quakes are especially assembled at the cusp of the channel south of New Ireland. 33 M7.5+ quakes have been recorded starting around 1900, remembering three shallow push shortcoming M8.1 occasions for 1906, 1919, and 2007.

The western finish of the Australia-Pacific plate limit is maybe the most mind boggling piece of this limit, expanding 2000 km from Indonesia and the Banda Ocean to eastern New Guinea. The limit is predominantly merged along a curve mainland crash fragment crossing the width of New Guinea, yet the areas close to the edges of the impinging Australia mainland edge likewise incorporate generally short portions of extensional, strike-slip and joined misshapening. The predominant intermingling is obliged by shortening and elevate across a 250-350 extensive band of northern New Guinea, as well as by sluggish toward the south coming close to subduction of the Pacific plate north of New Guinea at the New Guinea channel. Here, the Australia-Pacific plate relative speed is roughly 110 mm/yr towards the upper east, prompting the 2-8 mm/yr elevate of the New Guinea High countries.

Though the northern band of misshapening is somewhat diffuse east of the Indonesia-Papua New Guinea line, in western New Guinea there are something like two little (<100,000 km²) blocks of generally undeformed lithosphere. The westernmost of these is the Birds Head Landmass microplate in Indonesia's West Papua region, limited on the south by the Seram channel. The Seram channel was initially deciphered as an outrageous twist in the Sunda subduction zone, yet is currently remembered to address a toward the south coming close to subduction zone between Birds Head and the Banda Ocean.

There have been 22 M7.5+ tremors kept in the New Guinea locale beginning around 1900. The prevailing quake systems are pushed and strike slip, related with the curve landmass impact and the overall movements between various nearby microplates. The biggest tremor in the district was a M8.2 shallow pushed shortcoming occasion in the northern Papua territory of Indonesia that killed 166 individuals in 1996.

The western piece of the northern Australia plate limit expands roughly 4800 km from New Guinea to Sumatra and basically isolates Australia from the Eurasia plate, including the Sunda block. This part is predominantly united and incorporates subduction at the Sunda (Java) channel, and a youthful curve mainland impact.

In the east, this limit stretches out from the Kai Islands to Sumba along the Timor box, offset from the Sunda channel by 250 km south of Sumba. In opposition to prior structural models in which this box was deciphered as a subduction highlight consistent with the Sunda subduction zone, it is presently remembered to address a dying down deformational component connected with the impact of the Australia plate mainland edge and the volcanic circular segment of the Eurasia plate, starting in the last 5-8 Myr. Before impact started, the Sunda subduction zone stretched out toward the east to basically the Kai Islands, proved by the presence of a toward the north plunging zone of seismicity underneath Timor Leste. A more definite assessment of the seismic zone along it's eastern portion uncovers a hole in halfway profundity seismicity under Timor and seismic components that show a toward the east spreading tear in the slipping chunk as the adversely light maritime lithosphere withdraws from emphatically light mainland lithosphere. By all accounts, GPS estimations show that the area around Timor is right now presently not associated with the Eurasia plate, yet rather is moving at almost a similar speed as the Australia plate, one more outcome of crash.

Enormous quakes in eastern Indonesia happen much of the time however interplate megathrust occasions connected with subduction are uncommon; this is reasonable because of the disengagement of the diving maritime section from the mainland edge. There have been 9 M7.5+ seismic tremors recorded from the Kai Islands to Sumba beginning around 1900. The biggest was the incomparable Banda Ocean seismic tremor of 1938 (M8.5) a moderate profundity push blaming occasion that didn't cause huge death toll.