A Yes, earthquakes can SOMETIMES cause floods. When an undersea quake occurs, the land there can change its height. This change in height of the sea floor can send water onto the land above sea level and cause a flood.

Not directly. However, earthquakes can break dams and move riverbeds and ultimately result in flooding. But no, they don't directly cause floods.

Earthquakes cannot cause floods by themselves, but there are a couple of ways that earthquakes can cause floods indirectly. An earthquake that occurs under the ocean will trigger a tsunami, and an earthquake that ruptures a dam on a lake will result in the dammed lake flooding whatever is downstream of the dam.