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Hawaii Volcanism: Impact on the Environment 17 recent views
Fewer than one hundred people have been killed by eruptions in the recorded history of Hawaii, and only one death has occurred in the 20th Century. However, the lava flows are... -
May 1960 Puerto Montt, Valdivia, Chile Images
On May 22, 1960, a Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred in southern Chile. The series of earthquakes that followed ravaged southern... -
November 1952 Kamchatka Peninsula, Russia Images
The tsunami was generated by a magnitude 9.0 (Mw) earthquake on Kamchatka where it caused severe damage. The tsunami then struck Midway (3,000 kilometers away), the Hawaiian... -
Faults Images
Through the study of faults and their effects, much can be learned about the size and recurrence intervals of earthquakes. Faults also teach us about crustal movements that have... -
Environmental Hazards and Mud Volcanoes in Romania
Romania, an eastern European country, is severely affected by a variety of natural hazards. These include frequent earthquakes, floods, landslides, soil erosion, and drought all... -
October 1979 El Centro, USA Images
The magnitude 6.9 earthquake caused $30 million property damage and injured 91 people. -
April 1984 Morgan Hill, USA Images
This magnitude 6.2 earthquake caused $30 million in property damage in northern California. The epicenter of the quake was located near Mount Hamilton in the Diablo Range of the... -
October 1918 Puerto Rico, USA Images
At 10:14 am local time on October 11th, 1918, a magnitude 7.1 earthquake struck in Mona Passage, west of Puerto Rico. The shock was immediately followed by a tsunami with runup... -
October 1980 El Asnam, Algeria Images
This 7.3 magnitude earthquake killed 5,000 people and caused severe damage. Location: Northern Algeria. Damage: $3,000 million. About 9,000 were injured. Extensive damage... -
La Soufriere, Guadeloupe Images
La Soufriere is a stratovolcano with a summit dome, on the southern part of Guadeloupe Island. It has erupted explosively about ten times since 1400. -
September 1999 Nantou, Taiwan Images
At least 2,297 people killed, 8,700 injured, 600,000 people left homeless and about 82,000 housing units damaged by the earthquake and larger aftershocks. Damage estimated at 14... -
October 1935 Helena, USA Images
Location: almost directly beneath Helena. Affected area: 363,000 square kilometers. Damage: $4 million. A series of earthquakes beginning on October 3, 1935, shook the area. The... -
Fire vs Water: Erosional/Depositional Geology, Hawaiian Islands
Even a casual, untrained observer will see evidence that opposing forces have formed the Hawaiian Islands. The massive and lofty volcanoes have been scoured, abraded, and... -
Hawaii Volcanism: Lava Forms
Over the last several million years the Hawaiian Islands have been built of successive lava flows. They are the most recent additions in a long line of volcanoes that extends up... -
Mudflows and Earthflows Images
The slopes above streams and rivers are subjected to a variety of processes that cause them to recede and retreat from the river or stream channel. These processes, collectively... -
October 1915 Pleasant Valley, USA Images
Oblique-slip fault produced during the 7.7 magnitude earthquake of 1915, Pleasant Valley, Nevada. -
November 1999 Duzce, Turkey Images
The magnitude 7.2 quake occurred at 6.57 pm local time (16:57 GMT). Duzce lies on the eastern fringe of the region hit by the August 17, 1999 quake. The death toll from the...