1956 Nicaragua earthquake

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1956 Nicaragua earthquake
Relief map of Central America.jpg
Green pog.svg
UTC  time1956-10-24 14:42:18
ISC  event 888827
Local date24 October 1956 (1956-10-24)
Local time1956-10-24 08:42:18
Magnitude Ms 7.3
Depth25 km
Epicenter 11°43′N86°29′W / 11.72°N 86.48°W / 11.72; -86.48

The 1956 Nicaragua earthquake occurred on October 24 at 14:42 UTC. [1] The epicenter was located west of Masachapa, Managua Department, Nicaragua. [2] It was an earthquake of magnitude Ms 7.3, [3] or Mw 7.2. [1] Building damage was reported in Managua. [4] A study of W. Montero P. shows that this earthquake might be related to the earthquake of Nicoya Peninsula on October 5, 1950. [3] A tsunami was triggered by the earthquake. [5]

Managua Department Department in Nicaragua

Managua is a department in Nicaragua. It covers an area of 3,672 km² and has a population of 1,380,300, making it the country's most populated department. The capital is the city of Managua, which is also the capital of Nicaragua. The department has two coastlines, on the Pacific Ocean and on Lake Managua, but does not border Lake Nicaragua.

Nicaragua Country in Central America

Nicaragua, officially the Republic of Nicaragua, is the largest country in the Central American isthmus, bordered by Honduras to the northwest, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the southwest. Managua is the country's capital and largest city and is also the third-largest city in Central America, behind Tegucigalpa and Guatemala City. The multi-ethnic population of six million includes people of indigenous, European, African, and Asian heritage. The main language is Spanish. Indigenous tribes on the Mosquito Coast speak their own languages and English.


See also

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The following events occurred in October 1956:

1931 Nicaragua earthquake March 1931 earthquake in Nicaragua

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1992 Nicaragua earthquake September 1992 earthquake in Nicaragua

The 1992 Nicaragua earthquake occurred off the coast of Nicaragua at 6:16 p.m. on September 2. Some damage was also reported in Costa Rica. At least 116 people were killed and several more were injured. The quake was located in an active zone of stress and deformation. It created tsunamis disproportionately large for its surface wave magnitude.

1905 Kangra earthquake earthquake struck Himachal Pradesh, India on April 4, 1905

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1971 Solomon Islands earthquakes

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The 1981 Playa Azul earthquake occurred on October 24, 1981, at 21:22 local time. It was located near Playa Azul, Michoacán, Mexico. The magnitude of the earthquake was Mw 7.2, or Ms 7.3. Three deaths were reported, two from Michoacán and one from Mexico City. Some buildings were damaged in both Michoacán and Mexico City. A small tsunami was registered in Acapulco with a maximum height of 9 cm.

November 1960 Peru earthquake

The November 1960 Peru earthquake occurred offshore northern Peru on November 20 at 17:02 local time. The magnitude of the earthquake was put at Ms 6.75 by using the conventional 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 resulted from that the earthquake had a 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.

1942 Peru earthquake

The 1942 Peru earthquake occurred on August 24 at 17:50 local time and was located near the border of the departments of Ica and Arequipa, Peru. It had a magnitude of Mw 8.2 or Ms 8.4.

1911 Kikai Island earthquake earthquake struck the Ryukyu Islands, Japan on June 15, 1911

The 1911 Kikai Island earthquake occurred on June 15 at 14:26 UTC. The earthquake was located near Kikai Island, Japan. It had a magnitude of Ms 8.1.

1931 Southwest Sumatra earthquake

The 1931 Southwest Sumatra earthquake occurred on 25 September at 05:59 UTC. It was located between the Enggano Island and Sumatra, Indonesia, then under the rule of Dutch East Indies. It had a magnitude of Mw 7.3, or Ms 7.5.

1968 Sulawesi earthquake

The 1968 Sulawesi earthquake struck Indonesia on August 14. It had a Richter magnitude of 7.4, spawned a large tsunami, and killed roughly 200 people.


  1. 1 2 Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 680. ISBN   978-0124406520.
  2. Okal, Emile A; Newman, Andrew V (2001), "Tsunami earthquakes: the quest for a regional signal" (PDF), Physics of the Earth and Planetary Interiors, 124 (1–2): 45–70, Bibcode:2001PEPI..124...45O, doi:10.1016/S0031-9201(01)00187-X
  3. 1 2 http://www.cne.go.cr/CEDO-CRID/CEDO-CRID%20v2.0/CEDO/pdf/spa/doc4626/doc4626-b.pdf
  4. Manfutt, Ed. "San Cristobal, 1750 ms/nm". www.manfut.org.
  5. "DIRECCION GENERAL DE GEOFISICA -Peligros por maremotos (tsunamis) en Nicaragua". webserver2.ineter.gob.ni.