Ground shakes expose faraway earthquake hot spots

Slowdown in seismic waves map areas with temblor ingredients: weakened rock, fluid buildup

map of costa rica

WEAK SPOTS   A magnitude 7.6 earthquake that shook Costa Rica in 2012 revealed earthquake-prone weak spots in Earth’s crust, new research shows. Colored lines mark the intensity of shaking felt at that location from the epicenter (star), with yellow lines marking the more intense shaking.

USGS Earthquake Hazards Program

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Earth

From the Nature Index

Paid Content