Paul Segall News & Media Mentions
Four questions for Paul Segall on the Iceland volcano
Stanford geophysicist Paul Segall discusses the Fagradalsfjall volcano currently erupting 20 miles southwest of Reykjavík, Iceland. (Source: Stanford News)
Scientists test friction laws in the collapsing crater of an erupting volcano
A new analysis of the 2018 collapse of Kīlauea volcano’s caldera helps to confirm the reigning scientific paradigm for how friction works on earthquake faults. The model quantifies the conditions necessary to initiate the kind of caldera collapse that sustains big, damaging eruptions of basaltic volcanoes like Kīlauea and could help to inform forecasting and mitigation.
What causes earthquake foreshocks?
Because foreshocks precede larger quakes, they have long presented the tantalizing prospect of warning of potentially damaging earthquakes. But to date, they have only been recognized in hindsight, and scientists for decades have sought to understand the physical processes that drive them. Computer modeling by Stanford geophysicists finds answers in the complex geometry of faults.