Greek island of Santorini sees strongest quake yet in weeks of highly unusual seismic swarm
ATHENS, Greece (AP) — The latest of hundreds of earthquakes rattled the volcanic Greek island of Santorini on Tuesday after ...
Invisible lines: how unseen boundaries shape the world around us
Another invisible line is the Qinling-Huaihe line, which separates China into two distinct regions: the humid and subtropical south and the dry, temperate north.