1841 Kamchatka earthquake

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1841 Kamchatka earthquake
Relief Map of Kamchatka Krai.png
Bullseye1.png
Epicenter marked as a bullseye.
UTC  time21:30
Local dateMay 17, 1841 (1841-05-17)
Local time08:00
Magnitude9.0+ Mw
9.0+ Mt 
8.4 Mfa
Epicenter 52°30′N159°30′E / 52.5°N 159.5°E / 52.5; 159.5
Type Megathrust
Areas affected Kamchatka
Max. intensity MSK-64 IX (Destructive)
Tsunami15 meters
AftershocksUntil March 1842
CasualtiesUnknown

The 1841 Kamchatka earthquake occurred in the Pacific Ocean on May 17 at 08:00 local time. The earthquake had an epicenter off the Russian Far East's Kamchatka Peninsula. With an estimated moment magnitude of 9.0 or higher, it is one of the largest to strike the region. A large tsunami with a run-up height of up to 15 metres (49 ft) struck the coast.

Contents

Tectonic setting

The earthquake occurred off the Kamchatka Peninsula's east coast, which runs parallel to the Kuril-Kamchatka Trench, the area where the Pacific and Okhotsk Sea plates converge. Being older and therefore denser, the Pacific subducts beneath the Kamchatka Peninsula, which sits on the Okhotsk Sea Plate. These two plates meet along a convergent boundary, marked by the trench. The subduction zone is seismogenic and produces Kamchatka earthquakes, which occasionally generate tsunamis; some of these megathrust earthquakes are very strong (such as the 1952 magnitude 9.0 earthquake, the fifth-largest ever recorded). [1] Possibly the largest to have hit the peninsula was the 1737 magnitude 9.3 earthquake which generated a large tsunami as well. [2]

Earthquake

The earthquake was associated with thrust faulting on the subduction zone near the east coast of the Kamchatka Peninsula. According to the National Centers for Environmental Information, the earthquake felt area was used to estimate its magnitude at Mfa  8.4. A 2004 earthquake catalog placed both the tsunami magnitude (Mt ) and moment magnitude (Mw ) at 9.0, based on evaluating the available tsunami data. [3] [4] No information exists on the source area of the event due to the lack of tsunami records and observation. [5] The 1841 event is thought to be one of a number of large M 8.5+ earthquakes "missing" in the seismological record due to having their magnitudes underestimated. According to Dr. Susan Hough of the U.S. Geological Survey, the earthquake magnitude was underestimated due to the assumption that it did not generate a large-enough tsunami. Earthquakes measuring 8.5 or greater are generally assumed to cause large tsunamis. At the American Geophysical Union fall meeting in 2013, she believes the magnitude could be up to 9.2. [6]

Impact

The earthquake struck the coast and was felt with a maximum intensity of VIII–IX at Petropavlovsk-Kamchatskiy. [3] Up to 15 minutes of violent shaking was felt in the city. At least 50 stove chimneys on homes and government offices collapsed. Some homes suffered severe damage. [7] Cliffs at the coast collapsed. Cathedral bells reportedly rang during the earthquake. [8]

The event caused a large tsunami with a maximum run-up height of 15 metres (49 ft) at the eastern coast. [9] The tsunami washed away yurts belonging to the native population. [8] At Hilo, Hawaii, the tsunami measured 4.6 metres (15 ft). It is Hawaii's first historically recorded tsunami sourced from the Kamchatka Peninsula. [10]

See also

Related Research Articles

Megathrust earthquakes occur at convergent plate boundaries, where one tectonic plate is forced underneath another. The earthquakes are caused by slip along the thrust fault that forms the contact between the two plates. These interplate earthquakes are the planet's most powerful, with moment magnitudes (Mw) that can exceed 9.0. Since 1900, all earthquakes of magnitude 9.0 or greater have been megathrust earthquakes.

<span class="mw-page-title-main">Okhotsk microplate</span> Minor tectonic plate in Asia

The Okhotsk microplate is a proposed minor tectonic plate covering the Kamchatka Peninsula, Magadan Oblast, and Sakhalin Island of Russia; Hokkaido, Kantō and Tōhoku regions of Japan; the Sea of Okhotsk, as well as the disputed Kuril Islands.

<span class="mw-page-title-main">Kamchatka earthquakes</span> Earthquakes in the Kamchatka Peninsula, far eastern Russia

Many major earthquakes have occurred in the region of the Kamchatka Peninsula in far eastern Russia. Events in 1737, 1923 and 1952, were megathrust earthquakes and caused tsunamis. There are many more earthquakes and tsunamis originating from the region.

<span class="mw-page-title-main">1952 Severo-Kurilsk earthquake</span> Sixth most powerful on record; in Russia

The 1952 Severo-Kurilsk earthquake struck off the coast of the Kamchatka Peninsula. The 9.0 Mw earthquake triggered a major tsunami that hit Severo-Kurilsk, Kuril Islands, Sakhalin Oblast, Russian SFSR, USSR, on 5 November 1952 at 04:58 local time. This led to the destruction of many settlements in Sakhalin Oblast and Kamchatka Oblast, while the main impact struck the town of Severo-Kurilsk. It was the most powerful earthquake ever recorded in Russia, and the fifth most powerful earthquake ever recorded in the world since modern seismography began in 1900.

The 1906 Ecuador–Colombia earthquake occurred at 10:36:10 (UTC+5) on Wednesday January 31, 1906 off the coast of Ecuador, near Esmeraldas. The earthquake had a moment magnitude of 8.8 and triggered a destructive tsunami that caused at least 500 casualties on the coast of Colombia.

The 1997 Kamchatka earthquake, or 1997 Kronotsky earthquake, occurred on December 5 at 11:26 UTC near the east coast of the Kamchatka Peninsula. It was an Mw 7.7 (7.6–7.8) earthquake and was felt with intensity MM V in Petropavlovsk-Kamchatskiy. A 60 cm (23.6 in) tsunami was recorded in Kahului, 47 cm in Hilo, and 15 cm in Unalaska. The local tsunami generated by this earthquake affected a mostly unpopulated region. A post-tsunami survey found runup on the Kronotsky Peninsula was no more than a few meters. However, a later geological survey north of the peninsula, as well as an interview with a park ranger, indicate that runup was up to 8 meters (26 ft) along the coast near the Little and Big Chazhma rivers and north to the Storozh River.

<span class="mw-page-title-main">1944 Tōnankai earthquake</span> Earthquake and tsunami affecting southern Japan

The 1944 Tōnankai earthquake occurred at 13:35 local time on 7 December. It had an estimated magnitude of 8.1 on the moment magnitude scale and a maximum felt intensity of greater than 5 Shindo. It triggered a large tsunami that caused serious damage along the coast of Wakayama Prefecture and the Tōkai region. Together, the earthquake and tsunami caused 3,358 casualties.

The 1959 Kamchatka earthquake occurred on May 4 at 19:15 local time with a moment magnitude of 8.0–8.3, and a surface wave magnitude of 8.25. The epicenter was near the Kamchatka Peninsula, Russian SFSR, USSR. Building damage was reported in Petropavlovsk-Kamchatsky. The maximum intensity was VIII (Damaging) on the Medvedev–Sponheuer–Karnik scale. The intensity in Petropavlovsk-Kamchatsky was about VIII MSK.

The November 1960 Peru earthquake occurred offshore northern Peru on November 20 at 17:02 local time. The magnitude of the earthquake was Ms  6.75 by using the conventional surface-wave magnitude measurement within a shorter duration of ~20 s. However, there is a large discrepancy between the magnitudes in Ms  and Mw  in this earthquake. The discrepancy was caused from the earthquake's long source duration of about 130 s, and by calculating the seismic moment, the magnitude would be Mw  7.6 or Mw  7.8, according to different sources. This earthquake belongs to a category of earthquakes with slow rupture velocities and potential of producing tsunamis larger than those expected from the moment magnitudes.

The February 1923 Kamchatka earthquake occurred on 3 February 1923. The epicenter was on the southeastern coast of the Kamchatka Peninsula. The earthquake triggered a tsunami with wave heights up to eight metres, causing damage as far away as Hawaii. The maximum perceived Mercalli intensity was XI (Extreme). The tsunami caused two deaths in Kamchatka and one in Hawaii.

The Nemuro-Oki earthquake in scientific literature, occurred on June 17 at 12:55 local time. It struck with an epicenter just off the Nemuro Peninsula in northern Hokkaidō, Japan. It measured 7.8–7.9 on the moment magnitude scale (Mw ), 8.1 on the tsunami magnitude scale (Mt ) and 7.4 on the Japan Meteorological Agency magnitude scale (MJMA ).

On April 13, 1923, at 15:31 UTC, an earthquake occurred off the northern coast of the Kamchatka Peninsula in the USSR, present-day Russia. The earthquake had a surface-wave magnitude (Ms ) of 6.8–7.3 and an estimated moment magnitude (Mw ) of 7.0–8.2. This event came just two months after a slightly larger earthquake with an epicenter struck south of the April event. Both earthquakes were tsunamigenic although the latter generated wave heights far exceeding that of the one in February. After two foreshocks of "moderate force", the main event caused considerable damage. Most of the 36 casualties were the result of the tsunami inundation rather than the earthquake.

The 1737 Kamchatka earthquake occurred on October 17 near the southern tip of present-day Russia's Kamchatka Peninsula. The shock was felt at approximately 03:00 local time or 16:00 UTC by residents on the peninsula and Kuril Islands. The earthquake struck at a shallow depth of roughly 40 km beneath the peninsula. The earthquake had an estimated magnitude of 9.0–9.3 on the moment magnitude scale.

<span class="mw-page-title-main">2021 Chignik earthquake</span> 7th largest earthquake in the US

An earthquake occurred off the coast of the Alaska Peninsula on July 28, 2021, at 10:15 p.m. local time. The large megathrust earthquake had a moment magnitude of 8.2 according to the United States Geological Survey (USGS). A tsunami warning was issued by the National Oceanic and Atmospheric Administration (NOAA) but later cancelled. The mainshock was followed by a number of aftershocks, including three that were of magnitude 5.9, 6.1 and 6.9 respectively.

The 1586 Lima–Callao earthquake occurred on July 9 along the coast of Peru, near the capital Lima. A section of the Peruvian coast, stretching from Caravelí to Trujillo, north to south, was severely damaged by the earthquake. Major destruction occurred in the capital city Lima as well. The estimated moment magnitude (Mw ) 8.1 earthquake triggered a locally damaging tsunami up to 5 m (16 ft). This was the first major earthquake to strike the city of Lima since its establishment in 1535.

The 1979 Petatlán earthquake, also known as the IBERO earthquake occurred on March 14 at 05:07 local time in the Mexican state of Guerrero. The earthquake had a surface-wave magnitude of Ms  7.6 or moment magnitude of Mw  7.4 and maximum Modified Mercalli intensity of VIII (Severe). The epicenter, onshore, was located 12 km south southeast of Vallecitos de Zaragoza.

During April 1819, the area around Copiapó in northern Chile was struck by a sequence of earthquakes over a period of several days. The largest of these earthquakes occurred on 11 April at about 15:00 local time, with an estimated magnitude of Mw 8.5. The other two events, on 3 April between 08:00 and 09:00 local time and on 4 April at 16:00 local time, are interpreted as foreshocks to the mainshock on 11 April. The mainshock triggered a tsunami that affected 800 km of coastline and was also recorded at Hawaii. The city of Copiapó was devastated.

The 1657 Concepción earthquake occurred on March 15 at 20:00 local time off the coast of Concepción, Biobío Region in the Spanish Empire. The earthquake caused severe damage along the coast, and generated a large tsunami in the Bay of Concepción. At least 40 people were killed, the majority due to drowning from the tsunami. The town of Concepción was the hardest hit, with the earthquake and tsunami totally destroying it.

The 1843 Nias earthquake off the northern coast of Sumatra, Indonesia caused severe damage when it triggered a tsunami along the coastline. The earthquake with a moment magnitude (Mw ) of 7.8 lasted nine minutes, collapsing many homes in Sumatra and Nias. It was assigned a maximum modified Mercalli intensity of XI (Extreme).

<span class="mw-page-title-main">1833 Shōnai earthquake</span> Earthquake in Japan

The Shōnai offshore earthquake occurred at around 14:00 on December 7, 1833. It struck with an epicenter in the Sea of Japan, off the coast of Yamagata Prefecture, Japan. A tsunami was triggered by the estimated MJMA  7.5–7.7 earthquake. One hundred and fifty people were killed and there was severe damage in the prefecture.

References

  1. ↑ "20 Largest Earthquakes in the World". www.usgs.gov. Retrieved 2021-06-20.
  2. ↑ Chubarov L.B.; V. K. Gusiakov. "Tsunamis and earthquake mechanism in the island arc region". Science of Tsunami Hazards. 3 (1): 3–21.
  3. 1 2 Alexander A Gusev; L.S. Shumilina (2004). "Recurrence of Kamchatka strong earthquakes on a scale of moment magnitudes" (PDF). Izvestiya Physics of the Solid Earth. 40 (3): 206–215.
  4. ↑ Breanyn T. MacInnes; Robert Weiss; Joanne Bourgeois; Tatiana K. Pinegina (2010). "Slip Distribution of the 1952 Kamchatka Great Earthquake Based on Near-Field Tsunami Deposits and Historical Records" (PDF). Bulletin of the Seismological Society of America. 100 (4): 1695–1709. Bibcode:2010BuSSA.100.1695M. doi:10.1785/0120090376.
  5. ↑ Thorne Lay; Hiroo Kanamori; Larry Ruff (1982). "The Asperity Model and the Nature of Large Subduction Zone Earthquakes" (PDF). Earthquake Prediction Research. 1 (1): 3–71. ISSN   0286-0619.
  6. ↑ Rebecca Morelle (12 December 2013). "Enormous earthquakes 'are missing' from records". BBC News . Retrieved 23 October 2021.
  7. ↑ "Significant Earthquake Information". ngdc.noaa.gov. NOAA National Centers for Environmental Information. Retrieved 23 October 2021.
  8. 1 2 "ЗЕМЛЕТРЯСЕНИЕ 17 МАЯ 1841 г." [EARTHQUAKE MAY 17, 1841]. wdcb.ru (in Russian). World Data Center for Solid Earth Physics. Retrieved 23 October 2021.
  9. ↑ Joanne Bourgeois; Tatiana K. Pinegina (2017). "The 1997 Kronotsky earthquake and tsunami and their predecessors, Kamchatka, Russia" (PDF). Natural Hazards and Earth System Sciences. 18 (1): 335–350. Bibcode:2018NHESS..18..335B. doi: 10.5194/nhess-18-335-2018 .
  10. ↑ "Tsunami Event Information". ngdc.noaa.gov. NOAA National Centers for Environmental Information. Retrieved 23 October 2021.
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