All articles tagged with #insar
Satellite data show the Taftan volcano in southeastern Iran rising about 9 cm (3.5 inches) over 10 months, signaling pressure building in a shallow hydrothermal system near the summit rather than a magma-driven eruption. Researchers say the uplift, detected by InSAR from Sentinel-1, warrants ongoing monitoring (gas emissions, seismometers, GPS) and hazard planning, since phreatic blasts could occur even without lava flows.
New satellite mapping using InSAR reveals that 40 major river deltas are sinking about 4 mm per year, faster than global sea level rise, increasing flood and saltwater intrusion risks for roughly 236 million people; mitigation focuses on reducing groundwater pumping and employing managed aquifer recharge.
Satellite data collected from 430 miles above Earth is providing scientists with crucial information about the recent earthquake in Morocco. The data, obtained through a technique called InSAR, reveals that the earthquake involved both horizontal and upward movement of the land. Analysis suggests that an ancient fault called the Tizi n’Test fault may have been responsible for the quake, despite being inactive in recent history. These "blind earthquakes" are challenging to study as they do not crack through to the surface. The findings contribute to a better understanding of the event and could help assess future risks.