The formation of the Earth is the earliest geologic event.
A geologic event. An example of an igneous rock formation.
An earthquake is a geologic event caused by the movement of tectonic plates beneath the Earth's surface. It is not weather-related or caused by humans. Earthquakes occur due to the release of energy accumulated as stress along fault lines in the Earth's crust.
the cold war
Because Veteran's Day was originally "Armistice Day", the end of WWI is what caused the holiday.
Another geologic event that could take place is a volcanic eruption, where molten rock, ash, and gases are expelled from a volcano onto the Earth's surface. This event can lead to the formation of new landforms and potentially pose risks to nearby communities due to lava flows, ash fall, and volcanic gases.
the Bolshevisk revolution in Russia and subsequent formation of the USSR.
The event used to separate geologic eras is a significant change in Earth's environment or life forms, known as a mass extinction event.
No. A thunderstorm is a weather event.
mars
the number of years that have elapsed between the event and the present day
No. A volcano on its own is a geologic structure. A volcanic eruption is a geologic event.