Earthquakes12
-
Imaging beneath the southernmost volcanoes in the East Africa Rift
The last time we visited the southern part of the East Africa Rift, we were responding to an unusual series of earthquakes in December 2009 that shook northern Malawi. This time, we return to this part of the rift system as a part of a more comprehensive effort to understand the underpinnings of this continental…
-
Distant Quakes Trigger Tremors at U.S. Waste-Injection Sites, Says Study
Finding Could Help Identify Critically Stressed Faults
-
In Ethiopian Desert, a Window into Rifting of Africa
A new study in the journal Nature provides fresh insight into deep-earth processes driving apart huge sections of the earth’s crust. This rifting mostly takes place on seabeds, but can be seen in a few places on land—nowhere more visibly than in the Afar region of northern Ethiopia.
-
Tides Play a Role in Triggering Undersea Earthquakes
Can shifting tides trigger earthquakes? Research done by Maya Tolstoy, a geophysicist at Lamont-Doherty Earth Observatory, suggests they do.
-
The Boom of Hydraulic Fracturing
Experts discuss the rise and boom of unconventional hydrocarbon extraction in the final Sustainable Development Seminar Series of the 2012-2013 academic year.
-
Wastewater Injection Spurred Biggest Earthquake Yet, Says Study
2011 Oklahoma Temblor Came Amid Increased Manmade Seismicity
-
Jamuna River
The last part of our river work was on the Jamuna River, as the Brahmaputra is called south of where if diverges from its former course. It shifted up to 100 km to this course about 200 years ago. We visited Sirajganj where an embankment protects the city from the migrating river and Aricha near…
-
Brahmaputra chars
We traveled to the Brahmaputra River, one of the most active on the planet, to continue our fieldwork. We visited two places while working our way downstream and saw the rapid changes in the river bank and chars (islands). At one ghat (dock) the river had eroded a mile of the coast while in the…
-
Sampling The Ganges
For the final part of my journey, we will be visiting numerous sites, mainly on the main rivers of Bangladesh. The samples and field data will ground truth and calibrate satellite data improving our analyses. We first stopped at an area that had converted from shrimp farming to rice, then spent two days on the…
You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
