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2022 West Java Earthquake
On 21 November 2022, at 13:21 WIB ( UTC+07:00), a 5.6 earthquake struck near Cianjur in West Java, Indonesia. Between 335 and 635 people died, 7,729 were injured and 5 remain missing. More than 62,628 homes were damaged across 16 districts in Cianjur Regency and the surrounding region. The earthquake was strongly felt in Jakarta. It is the deadliest earthquake to hit Indonesia since the 2018 Sulawesi earthquake. Damage evaluated after the event earned it a maximum Modified Mercalli intensity of VIII (''Severe''). Tectonic setting Java lies near an active convergent boundary that separates the Sunda Plate to the north and the Australian Plate to the south. At the boundary, marked by the Sunda Trench, the northward-moving Australian Plate subducts beneath the Sunda Plate. The subduction zone is capable of generating earthquakes of up to magnitude 8.7, while the Australian Plate may also host deeper earthquakes within the downgoing lithosphere ( intraslab earthquakes) benea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cianjur Regency
Cianjur Regency is a Regency (Indonesia), regency ''(kabupaten)'' of West Java, Indonesia. The area of the regency is 3,614.35 km2 and its population at the 2010 Census was 2,171,281; the 2020 Census produced a total of 2,477,560 and the official estimate as at mid 2021 was 2,506,682. The town of Cianjur is its capital. Northern parts of the regency form a valley (above the 'neck'), and are far more densely populated than southern regions. As such, a portion of the northern valley (consisting of Cugenang, Pacet, Sukaresmi and Cipanas districts in the far northwest of the regency) was briefly included in a definition of Greater Jakarta called ''Jabodetabekjur'' (''jur'' for Cianjur). Administrative divisions Cianjur Regency is divided into thirty-two Districts of Indonesia, districts (''kecamatan''), listed below with their areas and their populations at the 2010 and 2020 Censuses, together with the official estimates as at mid 2021. The table also includes the location of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convergent Boundary
A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more Plate tectonics, lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction. The subduction zone can be defined by a plane where many earthquakes occur, called the Wadati–Benioff zone. These collisions happen on scales of millions to tens of millions of years and can lead to volcanism, earthquakes, Orogeny, orogenesis, destruction of lithosphere, and Deformation (geology), deformation. Convergent boundaries occur between oceanic-oceanic lithosphere, oceanic-continental lithosphere, and continental-continental lithosphere. The geologic features related to convergent boundaries vary depending on crust types. Plate tectonics is driven by convection cells in the mantle. Convection cells are the result of heat generated by the radioactive decay of elements in the mantle escaping to the surface and the return of cool materials from the surfac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorology, Climatology, And Geophysical Agency
Meteorology, Climatology, and Geophysical Agency ( id, Badan Meteorologi, Klimatologi, dan Geofisika, abbreviated BMKG) is an Indonesian non-departmental government agency for meteorology, climatology, and geophysics. History Its history began on 1841 with individual observation conducted by Dr. Onnen, the head of hospital in Bogor, and was established as a formal government institution on 1866 by the Dutch East Indies government by the name of ''Magnetisch en Meteorologisch Observatorium''. The agency name changed several times and its current name was given on 6 September 2008. Tropical Cyclone Warning Centre Since 1986 the BMKG, has run a Tropical Cyclone Warning Centre (TCWC), within their headquarters in Jakarta. Over the next 12 s ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2006 Yogyakarta Earthquake
The 2006 Yogyakarta earthquake (also known as the Bantul earthquake) occurred at with a moment magnitude of 6.4 and a maximum MSK intensity of VIII (''Damaging''). Several factors led to a disproportionate amount of damage and number of casualties for the size of the shock, with more than 5,700 dead, tens of thousands injured, and financial losses of Rp 29.1 trillion ( $3.1 billion). With limited effects to public infrastructure and lifelines, housing and private businesses bore the majority of damage (the 9th-century Prambanan Hindu temple compound was also affected), and the United States' National Geophysical Data Center classified the total damage from the event as extreme. Although Indonesia experiences very large, great, and giant thrust earthquakes offshore at the Sunda Trench, this was a large strike-slip event that occurred on the southern coast of Java near the city of Yogyakarta. Mount Merapi lies nearby, and during its many previous historical eruptions, large volum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wonosobo Regency
Wonosobo Regency ( jv, ꦑꦧꦸꦥꦠꦺꦤ꧀ꦮꦤꦱꦧ, Kabupatèn Wanasaba) is a regency ( id, kabupaten) in Central Java province in Indonesia. Its capital is the town of Wonosobo, located at , about 120 km from Semarang. The regency is located in the town of Wonosobo on the Dieng Plateau. Its area is 984.68 km2 and its population was 754,883 at the 2010 census and 879,124 at the 2020 census; the official estimate as at mid 2021 was 886,613. Etymology The word "Wonosobo" is derived from Javanese ''Wanasaba'', which in turn came from Sanskrit ''Vanasabhā''. It literally means 'the gathering place in the forest'. Administrative districts Wonosobo Regency is divided into the following fifteen districts (''kecamatan''), tabulated below with their areas and their populations at the 2010 census and the 2020 census, together with the official estimates as at mid 2021.Badan Pusat Statistik, Jakarta, 2022. The table also includes the location of the district headqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumatra
Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent islands such as the Simeulue, Nias, Mentawai, Enggano, Riau Islands, Bangka Belitung and Krakatoa archipelago. Sumatra is an elongated landmass spanning a diagonal northwest–southeast axis. The Indian Ocean borders the northwest, west, and southwest coasts of Sumatra, with the island chain of Simeulue, Nias, Mentawai, and Enggano off the western coast. In the northeast, the narrow Strait of Malacca separates the island from the Malay Peninsula, which is an extension of the Eurasian continent. In the southeast, the narrow Sunda Strait, containing the Krakatoa Archipelago, separates Sumatra from Java. The northern tip of Sumatra is near the Andaman Islands, while off the southeastern coast lie the islands of Bangka and Belitung, Karim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2009 West Java Earthquake
An earthquake occurred on September 2, 2009 at 14:55:01 local time in West Java, Indonesia. The magnitude 7.0 earthquake killed at least 81 people, injured over 1,297, and displaced over 210,000 (including more than 140,000 in Tasikmalaya regency)."Korban Tewas Akibat Gempa Sudah 79 Orang" Kompas newspaper, Sept 8, 2009 The quake was felt in the capital Jakarta, although damage there was minimal, and it was Indonesia's deadliest earthquake since the . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1994 Java Earthquake
An earthquake occurred on June 3, 1994 at 01:17:37 local time (June 2, at 18:17:37 GMT) off the coast of Indonesia. The epicenter was off the eastern part of the southern Java coast, near the east end of the Java Trench. Earthquake This earthquake occurred with a moment magnitude of 7.8 in a region which is characterized as having a weak seismic coupling. Earthquakes with slow rupture velocities are the most efficient tsunami generators, and this earthquake was classified as a tsunami earthquake. Tsunami The tsunami reached Java and Bali, with runups up to on the east Java coast and up to on the southwestern Bali coast. More than 200 people were killed in the tsunami. The shock could be felt strongly across Bali, central and eastern Java, Lombok, and Sumbawa. See also *List of earthquakes in 1994 * List of earthquakes in Indonesia * List of tsunami earthquakes * G-Land References Further reading * External links * {{Earthquakes in Indonesia Earthquakes in Java Eart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2006 Pangandaran Earthquake And Tsunami
An earthquake occurred on July 17, 2006 at along a subduction zone off the coast of west and central Java, a large and densely populated island in the Indonesian archipelago. The shock had a moment magnitude of 7.7 and a maximum perceived intensity of IV (''Light'') in Jakarta, the capital and largest city of Indonesia. There were no direct effects of the earthquake's shaking due to its low intensity, and the large loss of life from the event was due to the resulting tsunami, which inundated a portion of the Java coast that had been unaffected by the earlier 2004 Indian Ocean earthquake and tsunami that was off the coast of Sumatra. The July 2006 earthquake was also centered in the Indian Ocean, from the coast of Java, and had a duration of more than three minutes. An abnormally slow rupture at the Sunda Trench and a tsunami that was unusually strong relative to the size of the earthquake were both factors that led to it being categorized as a tsunami earthquake. Several thou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intraslab Earthquake
The term intraplate earthquake refers to a variety of earthquake that occurs ''within the interior'' of a tectonic plate; this stands in contrast to an interplate earthquake, which occurs ''at the boundary'' of a tectonic plate. Intraplate earthquakes are often called "intraslab earthquakes", especially when occurring in microplates. Intraplate earthquakes are relatively rare compared to the more familiar boundary-located interplate earthquakes. Structures far from plate boundaries tend to lack seismic retrofitting, so large intraplate earthquakes can inflict heavy damage. Examples of damaging intraplate earthquakes are the devastating Gujarat earthquake in 2001, the 2012 Indian Ocean earthquakes, the 2017 Puebla earthquake, the 1811–1812 earthquakes in New Madrid, Missouri, and the 1886 earthquake in Charleston, South Carolina. Fault zones within tectonic plates The surface of the Earth is made up of seven primary and eight secondary tectonic plates, plus dozens of tertiar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subducts
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of the dens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
