Tropical Cyclones

Tropical Cyclones

Hurricanes, typhoons and cyclones are strong rotating storm systems occurring in the tropics with 1-min maximum sustained wind speeds of more than 119 km/h.

Questions and answers on the subject of earthquakes

Questions and answers on the subject of earthquakes

FAQs on the subject of earthquakes are answered by researchers from the Helmholtz-Gemeinschaft (Helmholtz Association).

Plate tectonics and volcanism

Plate tectonics and volcanism

The Earth's outer crust is composed of different tectonic plates. These drift apart, collide or slide over each other and can cause earthquakes.

In all spheres: research devices on duty

In all spheres: research devices on duty

The Helmholtz-Association is using large infrostructures and devices to investigate the oceans, the continents and the atmosphere.

Lightning

Lightning

Lightning occurs about two million times a year in Germany. This article presents some basic facts about this impressive natural phenomenon.