The
1894 San Juan earthquake was a major
seismic movementAn earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph...
that took place in the
provinceArgentina is subdivided into twenty-three provinces and one autonomous city...
of
San JuanSan Juan is a province of Argentina, located in the western part of the country. Neighbouring provinces are, moving clockwise from the north, La Rioja, San Luis and Mendoza...
,
ArgentinaArgentina, officially the Argentine Republic , is the second largest country in South America, constituted as a federation of 23 provinces and an autonomous city, Buenos Aires. It is the eighth largest country in the world by land area and the largest among Spanish-speaking nations, though Mexico,...
, on 27 October 1894, at about 07:30 PM. It was the most powerful earthquake recorded in Argentina, with magnitude 8.0 on the
Richter scaleThe Richter magnitude scale, also known as the local magnitude scale, assigns a single number to quantify the amount of seismic energy released by an earthquake. It is a base-10 logarithmic scale obtained by calculating the logarithm of the combined horizontal amplitude of the largest displacement...
. Its
epicenterThe epicenter or epicentre is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates...
was located on the northwest of San Juan, approximately at , and at a depth of 30 km.
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The
1894 San Juan earthquake was a major
seismic movementAn earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph...
that took place in the
provinceArgentina is subdivided into twenty-three provinces and one autonomous city...
of
San JuanSan Juan is a province of Argentina, located in the western part of the country. Neighbouring provinces are, moving clockwise from the north, La Rioja, San Luis and Mendoza...
,
ArgentinaArgentina, officially the Argentine Republic , is the second largest country in South America, constituted as a federation of 23 provinces and an autonomous city, Buenos Aires. It is the eighth largest country in the world by land area and the largest among Spanish-speaking nations, though Mexico,...
, on 27 October 1894, at about 07:30 PM. It was the most powerful earthquake recorded in Argentina, with magnitude 8.0 on the
Richter scaleThe Richter magnitude scale, also known as the local magnitude scale, assigns a single number to quantify the amount of seismic energy released by an earthquake. It is a base-10 logarithmic scale obtained by calculating the logarithm of the combined horizontal amplitude of the largest displacement...
. Its
epicenterThe epicenter or epicentre is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates...
was located on the northwest of San Juan, approximately at , and at a depth of 30 km.
The earthquake was felt with grade IX in the
Mercalli intensity scaleThe Mercalli intensity scale is a scale used for measuring the intensity of an earthquake. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale of I through XII, with I denoting not felt, and XII one that causes...
. It caused grave damages and some victims in San Juan and the province of
La RiojaLa Rioja is a one of the provinces of Argentina and is located in the west of the country. Neighboring provinces are from the north clockwise Catamarca, Córdoba, San Luis and San Juan....
, and also minor damages in
CatamarcaCatamarca is a province of Argentina, located in the northwest of the country. The province has a population of 334,568 as per the , and covers an area of 102,602 km². Its literacy rate is 95.5%. Neighbouring provinces are : Salta, Tucumán, Santiago del Estero, Córdoba, and La Rioja...
,
CórdobaCórdoba is a province of Argentina, located in the center of the country. Its capital, Córdoba, is the second largest city in the country.Neighboring provinces are : Santiago del Estero, Santa Fe, Buenos Aires, La Pampa, San Luis, La Rioja and Catamarca.Together with Santa Fe and Entre Ríos, the...
,
San LuisSan Luis is a province of Argentina located near the geographical center of the country . Neighboring provinces are, from the north clockwise, La Rioja, Córdoba, La Pampa, Mendoza and San Juan.-History:...
and
MendozaMendoza is one of the 23 provinces of Argentina, located in the western central part of the country in the Cuyo region. Neighboring provinces are from the north clockwise San Juan, San Luis, La Pampa, and Neuquén. To the west is Chile.-History:...
, up to 500 km away from the epicenter.