Assertion: earthquake | /r/CapableOf | strike area
Facets:
value: on may
type: TEMPORAL
value: recently
type: TEMPORAL
Source sentences:
text: An earthquake swarm is usually defined as a higher-than-average number of earthquakes striking an area over a relatively short period of time, typically without a single main shock, according to the University of Utah Seismograph Stations, which measure seismic activity in Yellowstone National Park.
text: More than 10 earthquakes, ranging from 2.8 to 6.3 have recently hit the area, all occurring on the seabed of the Juan de Fuca tectonic plate, six miles from the surface.
text: Valdivia, Chile (Photo by Keystone-France/Gamma-Keystone via Getty Images) picture taken in April 1960 in Valdivia of people looking at an enormous crack on a street due to the earthquake that struck the area on May 22, 1960.