Earlier this week a few of our microbiologists were on patrol with colleagues from Riverkeeper, sampling the Hudson River between Kingston and Catskill, N.Y. Their work is part of an ongoing project to survey the river’s water quality; all data from this collaboration is available online. This study is the only publicly available source of water quality data for large portions of the Hudson River.
When a segment of a major fault line goes quiet, it can mean one of two things: The “seismic gap” may simply be inactive — the result of two tectonic plates placidly gliding past each other — or the segment may be a source of potential earthquakes, quietly building tension over decades until an inevitable seismic release.
A new study published in Geophysical Research Letters, a journal of the American Geophysical Union, has found evidence for both types of behavior on different segments of the North Anatolian Fault — one of the most energetic earthquake zones in the world. The fault, similar in scale to California’s San Andreas Fault, stretches for about 1200 kilometers (745 miles) across northern Turkey and into the Aegean Sea.
The researchers analyzed 20 years of GPS data along the fault, and determined that the next large earthquake to strike the region will likely occur along a seismic gap beneath the Sea of Marmara, some five miles west of Istanbul. In contrast, the western segment of the seismic gap appears to be moving without producing large earthquakes.
Read the full blog post from MIT here.