Izalco, El Salvador Images

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Izalco is a young stratovolcano on the south flank of Santa Ana Volcano in western El Salvador. Its continuous small explosive eruptions (beginning in 1770) caused it to be known as the "Lighthouse of the Pacific."

Irazu, Costa Rica Images

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Located 25 km from San Jose, Irazu is the highest volcano in Costa Rica and also has the country's earliest historic eruption (1772).

Cerro Negro, Nicaragua Images

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This cinder cone in western Nicaragua has a name that means "black hill." It has erupted more than 20 times since its birth in 1850. Explosive eruptions from the central crater are often accompanied by lava flows from the base of the cone. It is the youngest of four cinder cones scattered along a 20 km line east-southeast of Telica.

August 1973 Veracruz, Mexico Images

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South of Veracruz, southeastern Mexico. Damage: Severe. The earthquake caused heavy damage in the states of Morelos, Puebla, and Veracruz. Thousands were left homeless.

September 1985 Mexico City, Mexico Images

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The magnitude 8.1 earthquake occurred off the Pacific coast of Mexico. The damage was concentrated in a 25 square km area of Mexico City, 350 km from the epicenter. The underlying geology and geologic history of Mexico City contributed to this unusual concentration of damage at a distance from the epicenter. Of a population of 18 million, an estimated 10,000 people were killed, and 50,000 were injured.

May 2010 Pacaya, Guatemala Images

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A television reporter was killed by a shower of burning rocks when he got too close to the volcano, about 15 miles (25 kilometers) south of Guatemala City. On 29 May, a 90-m-wide lava flow that traveled SSE at an estimated rate of 100 m per hour burned three houses on the Pacaya Grande ranch.

May 1970 Huaraz, Peru Images

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In 1970, an earthquake-induced rock and snow avalanche on Mt. Huascaran, Peru, buried the towns of Yungay and Ranrahirca. The magnitude 7.8 earthquake killed 66,794 and caused $250 million in property damage. Several towns were almost totally destroyed. With factors of landslides and floods, was one of the largest disasters in the Southern Hemisphere.

October 1986 San Salvador, El Salvador Images

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At least 1,000 people killed, 10,000 injured, 200,000 homeless and severe damage in the San Salvador area. About 50 fatalities were the result of landslides in the epicentral area. Some damage at Tegucigalpa, Honduras. Felt strongly in parts of Guatemala and Honduras.

April 1992 Cape Mendocino, USA Images

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On April 25, 1992 at 11:06 am local time (April 25 at 18:06 GMT), a magnitude 7.1 earthquake occurred in the Cape Mendocino area. Two additional earthquakes, magnitudes 6.6 and 6.7 occurred the next morning (April 26 at 00:41 and 04:18 am local time). The first earthquake was located six miles north of Petrolia, California, in a sparsely populated part of southwestern Humboldt County. Five small communities were located within a 50-mile radius of these events: Honeydew, Petrolia, Rio Dell, Scotia, and Ferndale.

Kirishima, Japan Images

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The shield volcano consists of more than 20 eruptive centers over a 20 x 30 km area that also includes Japan's first national park. Sixty-nine eruptions have been documented since 742 A.D. Kirishima is one of Japan's 31 active volcanoes, and has erupted 19 times since 1700.