Lamont scientist Ben Holtzman and the Seismic Sound Lab take viewers on an entirely new sensory experience to see, hear and feel earthquakes from inside the planet.
Within weeks of a devastating earthquake in Nepal, governments and private groups pledged $4 billion in aid. And something else emerged from the rubble: a grassroots movement to rebuild rural Nepal safely and sustainably.
Seismologist Won-Young Kim heard the first reports of the World Trade Center attacks in his car as he drove to Columbia University’s Lamont-Doherty Earth Observatory, on the west bank of the Hudson River 21 miles north of the attacks. Soon, he was inundated by calls from government officials and reporters. In the initial chaos, it was unclear exactly what had hit, and when; had the seismographs picked up anything?
For his pioneering work in rock mechanics and his skill at communicating earthquake science, Scholz is being honored on April 20 by the Seismological Society of America with its top award, the Harry Fielding Reid Medal.
Last Thursday, thousands of people on the Eastern Seaboard felt the earth tremble. Seismologists at Columbia University’s Lamont-Doherty Earth Observatory quickly concluded it was not an earthquake, but a military exercise.
On every continent and ocean, Earth Institute field researchers are studying the dynamics of climate, geology, natural hazards and ecology, and their practical applications to modern problems. Below, a list of expeditions in rough chronological order. Work in and around New York City and the U.S. Northeast is listed separately toward bottom. Unless otherwise stated, projects originate with… read more
Ancient faults that formed in the ocean floor millions of years ago are feeding earthquakes today along stretches of the Alaska Peninsula, and likely elsewhere, a new study suggests.
We finished our work at the river transect. Now we had one more sample to collect. Alamgir had arranged for drillers at this new site, but they were delayed because of a knife fight between two villages over some property.
The success of the tube wells for drilling and obtaining samples was a great boon to our field program. We drilled three additional tube wells to complete a five-well transect across the abandoned river valley. When we date the samples, we will find out if the river switched position suddenly, possibly from an earthquake.
The resistivity testing was hampered by bad roads and flooded fields. The augering was proving similarly difficult in the thick muds of the abandoned channel. It was time to change to our alternative plan: drilling with tube wells. That worked better and we had turned a corner.