Browsing Tag

Geophysics/Gravity

How earthquake swarms arise

Stanford model shows how fluids unlock faults to unleash earthquake swarms Earthquakes can be abrupt bursts of home-crumbling, ground-buckling energy when slices of the planet's crust long held in place by friction suddenly slip and lurch.…

Rebirth of a volcano

For the first time, long-term photogrammetic series document the "life cycle" of a volcano. The analyses shows that volcanoes have a kind of memoryCredit: GFZ Volcanoes are born and die - and then grow again on their own

Surprise on Mars

Credit: NASA / JPL An observer standing on Mars would see the planet's moon Phobos cross the sky from west to east every five hours. Its orbit passes between the sun and any given point on Mars about once each Earth year. Each time it does…