Natural Disasters
North American seismic networks can contribute to nuclear security
Seismologists explain how the work of regional seismic networks in North America are contributing to nuclear test monitoring, particularly in the case of low-yield explosions.
Read moreEarly warning signals heralded fatal collapse of Krakatau volcano
On 22 December 2018, a flank of the Anak Krakatau plunged into the Sunda strait between the Indonesian islands of Sumatra and Java, triggering a tsunami that killed 430 people. An international research team has now shown that the volcano produced clear warning signals before its collapse. The researchers recommend to use their study to improve monitoring of volcanoes.
Read moreDid long ago tsunamis lead to mysterious, tropical fungal outbreak in Pacific northwest?
The Great Alaskan Earthquake of 1964 and the tsunamis it spawned may have washed a tropical fungus ashore, leading to a subsequent outbreak of often-fatal infections among people in coastal regions of the Pacific Northwest, according to a new article.
Read moreGel-like fluid designed to prevent wildfires
Scientists and engineers worked with state and local agencies to develop and test a long-lasting, environmentally benign fire-retarding material. If used on high-risk areas, the simple, affordable treatment could dramatically cut the number of fires that occur each year.
Read moreLaser-based system detects fires even in dusty, harsh environments
Researchers have developed a new laser-based system that offers an efficient and low-cost way to detect fires in challenging environments such as industrial facilities or large construction sites. With further development, the system could eventually detect fires that are more than a kilometer away.
Read moreNew satellite may make flood prediction easier
A satellite on schedule to launch in 2021 could offer a more comprehensive look at flooding in vulnerable, under-studied parts of the world, including much of Africa, South America and Indonesia, a new study has found.
Read moreHurricane resilience in the bahamas: Ecosystem
A new study provides information on how to invest in natural coastal ecosystems that the Bahamian government, community leaders and development banks are applying in post-disaster recovery and future storm preparation in the Bahamas.
Read more'Treasure trove' of earthquake clues could be unearthed by wavy new technique
Geologists have improved upon methods to map seabed rocks, helping us better understand underwater earthquakes and the tsunamis they can cause.
Read moreMachu Picchu: Ancient Incan sanctuary intentionally built on faults

The ancient Incan sanctuary of Machu Picchu is considered one of humanity's greatest architectural achievements. Built in a remote Andean setting atop a narrow ridge high above a precipitous river canyon, the site is renowned for its perfect integration with the spectacular landscape. But the sanctuary's location has long puzzled scientists: Why did the Incas build their masterpiece in such an inaccessible place?