June 1, 2010 -- The first named storm of the eastern Pacific hurricane season certainly punched above its weight. Tropical storm Agatha raked Guatemala and El Salvador over the weekend, and though its winds never broke 45 miles per hour, it dumped several feet of rain across parts of the region. Massive floods and landslides have claimed at least 179 lives (below, a large truck is buried in landslide debris).
In downtown Guatemala City, the rains opened an enormous sinkhole 66 feet across and 100 feet deep on Saturday that swallowed a clothing factory and a city intersection. No one was reported killed in the large crater (pictured above).
Guatemalan government, via Flickr
On Tuesday, geologists said the hole's circular shape hinted that there is a cave system underneath Guatemala City. Sinkholes often form in areas -- like Florida -- where groundwater infiltrates bedrock that is rich in limestone or salt deposits, and eats away at it.