Topic: Landslides and Mudslides

Marsquake? How rumblings could bolster hope for life on Mars.

If seismic activity on Mars is recent, and it can be traced to a volcano, it could mean that there is a source of heat to melt ice and provide potential habitats for simple forms of life.

Negros earthquake: Urgent rescue efforts as death toll rises (+video)

Negros earthquake: Philippines President Aquino ordered armed forces to join rescue efforts on Negros Island as the death toll from Monday's 6.9 quake rose to 22.

Guatemalans spend a night on watch, after six earthquakes hit in single day

Six earthquakes hit the tiny Central American nation of Guatemala Monday, killing at least three people.

Typhoon Nanmadol meets a well-prepared Taiwan (VIDEO)

Typhoon Nanmadol struck Taiwan Monday. The island, chastened by poor response to a 2009 typhoon, has strengthened infrastructure and improved evacuation and preparation measures.

Hurricane Irene getting bigger, stronger

Hurricane Irene strengthened to a Category 2 hurricane Monday. Forecasts show it will miss Florida, but Irene may grow as it moves toward the Carolinas.

Haiti's 'tent cities' brace for Tropical Storm Emily

As Tropical Storm Emily heads for Haiti, aid groups scramble to prepare relief efforts for the more than 600,000 people still in makeshift housing after the devastating January 2010 earthquake.

South Korea mobilizes to cope with flooding, landslides

More than 20 inches of rain have fallen on Seoul, South Korea, since Tuesday. Tens of thousands of workers are repairing housing and railroad tracks, as well as searching for missing people.

China's Three Gorges project: A huge dam with big troubles

After years of denials, China admits its Three Gorges project is destabilizing land around the 400-mile-long reservoir, prompting calls for more costly resettlements.

Five of Asia's most devastating earthquakes

The Pacific Rim, the body of land surrounding the Pacific Ocean from the west coasts of North and South America to the east coasts of China and Japan, is one of the most volatile regions in the world for earthquakes, tsunamis, and volcanic eruptions. Since 1975, several stunning earthquakes around the Pacific Rim have resulted in tremendous devastation and loss of life – some smaller, but some much greater, than the unfolding crisis in Japan from the March 11 temblor.

Source: US Geological Survey historical data

Brazil's floods force urban planning rethink

Brazil's deadliest mudslides on record provided impetus for the government to start enforcing stricter housing regulations and for low-income favela residents to accept relocation.

California superstorm could destroy up to a quarter of homes in the state

Scientists have detailed a California superstorm scenario that could destroy up to a quarter of homes in the state.

Even with Brazil flooding expected to continue, many remain in perilous areas

Rescue workers are encouraging residents of hillside slums at risk from Brazil flooding to seek safety. More rain is expected this weekend.

Brazil mudslides claim 355, some still trapped

Brazil mudslides: At least 355 people died in three Rio state towns after slides hit at about 3 a.m. Wednesday, and at least 50 people were still missing, officials said.

Snow storm: Who will get a white Christmas?

Atlanta could have its first real white Christmas since 1882. But whether the snow storm pummels major East Coast cities is still up in the air.