Matrix of multi-hazards

A while ago I created a matrix table to get clear in my mind the links between hazards. The result is displayed below. The table should be read from left to right. The primary hazard is listed in the vertical far left column, while the secondary hazard it triggers is listed along the top horizontal row.

It is by no means a complete or definitive guide to multi-hazards, but is a useful tool for trying to visualise the connections. If anyone has any suggestions to alter the table, I would be glad to hear them.

	Earthquake	Volcano	Flood	Tsunami	Landslide	Avalanche	Lahar	Mudflow	Hurricane
Earthquake		Shaking = gaps for magma		Displacement of water	Shaking	Shaking
Volcano	Eruption force		Glacier burst	Displacement of water	Flank collapse	Eruption/ shaking of snow on top	Tephra (+ melting)	Tephra (+ melting)	Tephra (?)
Flood					Undercutting		Entrainment of material	Entrainment of material
Tsunami			Water onto land
Landslide		Pressure change on flank	Block and break of river/lake	Displacement of water				Provision of material
Avalanche			Damming/ burst and melting	Displacement of water			Provision of transport	Provision of transport
Lahar			Provision of liquid
Mudflow			Provision of liquid
Hurricane	Pressure changes (?)	Water into gaps into magma	Heavy precipitation		Saturation of slopes		Heavy precipitation	Heavy precipitation

At the EGU, Joel Gill presented a much more robust matrix of multi-hazards. He intends to publish the results by the end of the summer, so watch this space for updates...