seismicity

PTI Washington, February 17Observing the healing behaviour of a fault could provide a window into the seismicity of the fault zone, according to scientists.A fault that is slow to heal is more likely to move harmlessly, while one that…

It’s clear that Hunga involved an unusually explosive recipe that may not be easily replicated. For about a month, the eruption had progressed as expected—moderately violent, with gas and ash, but manageable. Then everything went sideways.…

Just how big was the January eruption of the Hunga-Tonga volcano? Four months of intensive science has only bumped up the scale. You could point to the audible booms that interrupted the night in Alaska, 6,000 miles away. Or perhaps to the…

Last December, a gloopy ooze of lava began extruding out of the summit of La Soufrière, a volcano on the Caribbean island of St. Vincent. The effusion was slow at first; no one was threatened. Then in late March and early April, the volcano…