Tornadoes rated a 5 on the National Weather Service’s intensity scale are so strong they can level strong frame houses, debark trees, launch cars great distances through the air and etch a scar into ...

Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake strikes. Scientists used the Richter Scale for many years but now largely ...

Atmospheric rivers, which are long, narrow bands of water vapor, are becoming more intense and frequent with climate change. A new study demonstrates that a recently developed scale for atmospheric ...

Tropical systems tracked by the National Hurricane Center will be classified as depressions, tropical storms and hurricanes based on their intensity. The NHC will label a system a tropical depression ...

A recent study joins a growing chorus of calls for experts to adopt a new intensity scale to rank the power of hurricanes. The current Saffir-Simpson Hurricane Wind Scale (SSHWS) only takes into ...