Placed on Earth, it would stretch from Washington DC to New York to Denver. Larger than the Grand Canyon, wider and deeper than East Africa’s Great Rift Valley, Mercury’s newly-discovered “Great Valley” boggles the imagination.
It’s generally believed that hydraulic fracturing is behind the recent spate of earthquakes in regions not usually associated with seismic activity, but the underlying processes are still poorly understood.
Seismologists are warning that the latest earthquake to strike New Zealand could trigger other large earthquakes in the coming days and weeks, but sensationalistic claims of a devastating “mega-quake” are likely overblown.
Residents of the southern Japanese city of Fukuoka had a rather rude awakening this morning when a gigantic sinkhole formed near the JK Hakata train station. Local officials are now desperately working to prevent the collapse of nearby buildings.