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Results for “Earthquakes & Volcanoes (USGS)”

Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.

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At least 163 records · Page 9Linked to original sources
USGS1987

Accounts describing the Mississippi Valley Earthquakes of 1811-12

At 2:15 a.m. on December 16, 1811, a unique sequence of earthquakes began in what is today southeast Missouri and northeast Arkansas. Although the area was sparsely populated,the earthquakes, generally referred to as the New Madrid earthquakes, were felt throughout a wide area if the Central and Eastern United States. Consequently, they were widely reported in newspapers and in other written accounts.

Earthquakes & Volcanoes (USGS)↗
USGS1986

Volcano monitoring at the U.S. Geological Survey's Hawaiian Volcano Observatory

The island of Hawaii has one of the youngest landscapes on Earth, formed by the frequent addition of new lava to its surface. Because Hawaiian eruptions are generally nonexplosive and easily accessible, the island has long attracted geologists interested in studying the extraordinary power of volcanic eruption. The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO), now nearing its 75th anniversary, has been in the forefront of volcanology since the early 1900s. This issue of <i>Earthquakes and Volcanoes</i> is devoted to the work of the Observatory and its role in studying the most recent eruptions of Hawaii's two currently active volcanoes, Kilauea and Mauna Loa.

Earthquakes & Volcanoes (USGS)↗
USGS1988

Meers Fault, Oklahoma

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Earthquakes & Volcanoes (USGS)↗
USGS1988

Earthquake response

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Earthquakes & Volcanoes (USGS)↗
USGS1988

QED

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Earthquakes & Volcanoes (USGS)↗
USGS1992

Introduction to the Landers-Big Bear Earthquakes

This issue of <i>Earthquakes & Volcanoes</i> tells the story of a pair of exceptional earthquakes, which struck southern California on June 28, 1992 - a magnitude 7.6 earthquake near Landers and a magnitude 6.7 aftershock near Big Bear Lake. The mainshock occurred at approximately 5:00 a.m. local time, and the aftershock - the strongest of a prolonged, prolific series - followed 3 hrs later.

California↗
USGS1992

Earthquakes March-April 1992

The months of March and April were quite active seismically speaking. There was one major earthquake (7.0<M<8.0), a magnitude 7.1 shock on April 25 in northern California. Earthquake-related deaths were reported in Iran, Costa Rica, Turkey, and Germany.

Earthquakes & Volcanoes (USGS)↗
USGS1992

Earthquakes, May-June, 1992

The months of May and June were very active in terms of earthquake occurrence. Six major earthquakes (7.0<M<8.0) occurred during this reporting period. These earthquakes included a magnitude 7.1 in Papua New Guinea on May 15, a magnitude 7.1 followed by a magnitude 7.5 in the Philippine Islands on May 17, a magnitude 7.0 in the Cuba region on May 25, and a magnitude 7.3 in the Santa Cruz Islands of the Pacific on May 27. In the United States, a magnitude 7.6 earthquake struck in southern California on June 28 followed by a magnitude 6.7 quake about three hours later.

Earthquakes & Volcanoes (USGS)↗
USGS1992

Organizational changes at Earthquakes & Volcanoes

Primary responsibility for the preparation of <i>Earthquakes & Volcanoes</i> within the Geological Survey has shifted from the Office of Scientific Publications to the Office of Earthquakes, Volcanoes, and Engineering (OEVE). As a consequence of this reorganization, Henry Spall has stepepd down as Science Editor for <i>Earthquakes & Volcanoes(E&V)</i>.

Earthquakes & Volcanoes (USGS)↗
USGS1992

The 1991 eruptions of Mount Pinatubo, Philippines

Recognition of the volcanic unrest at Mount Pinatubo in the Philippines began when steam explosions occurred on April 2, 1991. The unrest culminated ten weeks later in the world's largest eruption in more than half a century.

Mount Pinatubo↗
USGS1992

Foreward

This issue of <i>Earthquakes & Volcanoes</i> focuses on a series of three powerful earthquakes centered near Cape Mendocino, California, on April 25-26, 1992. The sequence began with a magnitude 7.1 mainshock at 11:06 a.m. (local time) on April 25. Strong aftershocks with magnitudes of 6.6 and 6.7 occurred on April 26 at 00:41 a.m. and at 4:18 a.m., respectively.

California↗
USGS1987

Lake Nyos was rigged for disaster

Studies suggest that magmatic gas seepage had turned Lake Nyos in Cameroon into a time bomb; evidence mounts against a volcanic trigger for last August's disaster.

Lake Nyos is a crater lake in the Northwest Region↗