Here we review the processes of natural disasters is the primary geological process. Geological processes can be identified as an endogenous process (which works inside the Earth) and exogenous processes (who worked on the surface of the Earth).Endogenous process consists of:
1. Tectonic motion - causing an earthquake. Mengebabkan earthquake fault occurrence in the earth's crust. Earthquake shocks could spark Avalanche or Landslide as happened in Padang Pariaman. The fault that occurred on the seabed could trigger a tsunami (the process occurred at sea or hydrosphere), as happened when the earthquake December 26, 2004 in the Indian Ocean. Meanwhile, the landslide that occurred in the deep ocean trenches can also generate tsunami.
2. Magmatic - raises volcano - causing volcanic eruptions that cause pyroclastic flows or when there is Lava Hot participating crater lake collapsed. Then, deposition of sand on the slopes of the volcano when exposed to heavy rain (atmospheric processes) can lead to Lava flow, either hot or cold lava lava. Examples like that happened Mount Merapi Yogyakarta
Exogenous process consists of:
1. Rock outcrop - causes soil movement or landslides. Longsong happens to weathered rock that can occur due to be triggered by seismic shocks (endogenous process), or by rainfall (the process in the atmosphere) is high.
2. Flood - occurs because the rainfall is high. Water flow can cause erosion that occurred in the river cliffs. Sediment loads entering the sea as river flow will cause sedimentation in the sea.
1. Tectonic motion - causing an earthquake. Mengebabkan earthquake fault occurrence in the earth's crust. Earthquake shocks could spark Avalanche or Landslide as happened in Padang Pariaman. The fault that occurred on the seabed could trigger a tsunami (the process occurred at sea or hydrosphere), as happened when the earthquake December 26, 2004 in the Indian Ocean. Meanwhile, the landslide that occurred in the deep ocean trenches can also generate tsunami.
2. Magmatic - raises volcano - causing volcanic eruptions that cause pyroclastic flows or when there is Lava Hot participating crater lake collapsed. Then, deposition of sand on the slopes of the volcano when exposed to heavy rain (atmospheric processes) can lead to Lava flow, either hot or cold lava lava. Examples like that happened Mount Merapi Yogyakarta
Exogenous process consists of:
1. Rock outcrop - causes soil movement or landslides. Longsong happens to weathered rock that can occur due to be triggered by seismic shocks (endogenous process), or by rainfall (the process in the atmosphere) is high.
2. Flood - occurs because the rainfall is high. Water flow can cause erosion that occurred in the river cliffs. Sediment loads entering the sea as river flow will cause sedimentation in the sea.
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