Weekly earthquake info 2024.5.26 Shaking throughout a large space of ​​Kanto late Saturday night time, centered in southern Ibaraki Prefecture

At roughly 0:55 on the twenty sixth (Sunday), an earthquake estimated at magnitude 4.6 and a depth of roughly 70 km occurred with its epicenter in southern Ibaraki Prefecture. This earthquake affected one metropolitan space, together with Mito Metropolis and Tsuchiura Metropolis in Ibaraki Prefecture, Utsunomiya Metropolis and Tochigi Metropolis in Tochigi Prefecture, Itakura City in Gunma Prefecture, Kumagaya Metropolis and Saitama Metropolis in Saitama Prefecture, Matsudo Metropolis and Kashiwa Metropolis in Chiba Prefecture, Itabashi Ward and Adachi Ward in Tokyo The best seismic depth of three was noticed over a large space in 5 prefectures.

That is the primary earthquake with a magnitude of three or increased to hit southern Ibaraki Prefecture for the reason that 5.3 magnitude earthquake with a most seismic depth of just below 5 that occurred on March 21 this 12 months, and is inspecting the tools. being a sort of reverse fault with a stress axis operating from west-northwest to south-east.

The southern a part of Ibaraki Prefecture is on the border the place the Philippine Sea Plate enters the earth’s plate, and is an space generally known as an “earthquake nest”, with many earthquakes the Kanto area. This 12 months alone marks the fifth earthquake with a seismic depth of three or increased.

Close to the middle of this earthquake, the Philippine Sea plate is subducting into the Earth’s plate. The plate boundary is regarded as about 30km deep, and this earthquake occurred deeper than that.

Moreover, the mechanism of the earthquake was a sort of regular faulting, somewhat than the kind of reverse faulting anticipated at plate boundaries, so it seems to have occurred alongside a- contained in the Philippine Sea Plate.

The 1968 magnitude 6.6 earthquake was additionally estimated at a depth of 39km, and had related mechanisms at the moment.

The federal government’s Central Earthquake Analysis Promotion Workplace says that no modifications have been noticed on account of the earthquake on Wednesday the seventeenth that might have elevated the Nankai Trough’s mega earthquake potential.

At roughly 9:39 am on the twenty first (Tuesday), an earthquake estimated to have a magnitude of 5.6 and a depth of 52 km occurred with its epicenter close to Chichijima within the Ogasawara Islands. Because of this earthquake, a most seismic depth of 4 was noticed on Hahajima, and a seismic depth of three was noticed on Chichijima. That is the primary time in a few month that an earthquake with a seismic depth of 4 or increased has occurred in Japan since April 24 (M5.1 in northern Ibaraki Prefecture).

The ocean close to Chichijima is close to the boundary between the Pacific plate and the Philippine Sea plate, and earthquakes are noticed at a depth of about 50 to 80 km. In January 2022, an earthquake with a magnitude of 6.1 occurred, barely bigger than this one, with a most seismic depth of 5+.

As well as, there are lots of shallow earthquakes east of the plate boundary, and in 2010, a magnitude 7.8 earthquake occurred at a depth of 8 km. Though the utmost seismic depth was solely 4, a tsunami occurred, and tsunami waves of about 10 cm have been noticed alongside the Pacific coast from Kochi Prefecture to Iwate Prefecture.

At roughly 20:00 on the twenty third (Thursday), an earthquake estimated at magnitude 4.6 and a depth of 48 km occurred with its epicenter off the southeast coast of Nemuro Peninsula. Because of this earthquake, the best seismic depth of three was noticed in Nemuro Metropolis, Betsukai Metropolis, and Hamanaka Metropolis, Hokkaido.

The mechanism of the earthquake is investigated as a sort of reverse fault with a stress axis within the northwest-southeast path. In January of this 12 months, there was a magnitude 4.8 earthquake centered close by off the southeast coast of the Nemuro Peninsula, with a most seismic depth of three.

The southeast coast of Nemuro Peninsula is an space the place earthquakes usually happen close to the boundary the place the Pacific plate crosses with the North American plate. Massive earthquakes have additionally occurred, together with a magnitude 7.0 earthquake in January 2000.

The federal government’s Headquarters for the Promotion of Earthquake Analysis has estimated that there’s an 80% likelihood of an earthquake with a magnitude of seven.8 to eight.5 occurring inside 30 years within the space off the coast of Nemuro, which embody the middle of this earthquake, so preparation is crucial. .

In keeping with a examine by the US Geological Survey, one earthquake with a magnitude of 6 or increased has occurred. The biggest earthquake occurred close to Vanuatu with a magnitude of 6.3.

On the morning of the twenty sixth (Sunday) Japan time, an earthquake with a magnitude of 6.3 and a depth of about 29 km occurred close to Vanuatu within the South Pacific. The mechanism of the earthquake is a standard sort of fault with a compression axis within the east-west path, and a strike-slip element can also be being investigated.

Though the epicenter was close to the islands, it seems that there have been no main tremors in city areas equivalent to Vanuatu’s capital, Port Vila.

The waters round Vanuatu are positioned on the boundary between the Pacific plate and the Australian plate, and since the plates are intently interconnected, several types of earthquakes happen. Bigger magnitude 7 earthquakes usually happen, and in 2010 a magnitude 7.3 earthquake was close to the epicenter of this earthquake.

On the night time of the fifth (Friday, Japan time), an earthquake that was estimated to have a magnitude of 4.8 and a depth of about 5 km occurred with its epicenter in New Jersey, close to New York. The earthquake mechanism is taken into account to be strike-slip.

This earthquake is believed to have induced shaking of magnitude IV on the revised Mercalli depth scale, even in central New York. Though a exact comparability shouldn’t be potential, the shaking corresponds to a seismic depth degree of 1 to 2 on the Japanese seismic depth scale.

Earthquakes are uncommon within the northeastern United States, together with the New York space, and solely 40 earthquakes of magnitude 3 or larger have occurred inside 250 km of the epicenter. -average since 1950. Amongst them, this dimension 4.8 is the biggest.

As well as, a magnitude 5.8 earthquake that occurred in Virginia in August 2011 is named an earthquake that induced tremors in New York and different areas.