Abismo – abyss
Agrietarse – to crack
Albergue – shelter
Búsqueda y rescate – search and rescue
Aislado – cut off or isolated
Comportamiento – the behavior of a volcano, ocean etc.
Cráter – crater
Damnificados – homeless as a result of a disaster
Dañar – to damage
Daños estructurales – structural damage
Daño total or quedar inservible – totaled
Derrumbe – landslide
Deslavar – to wash out (road)
Deslave – washed out road
Deslizamiento – landslide
Devastar – to devastate
Donativo or donación – donation
Epicentro – epicenter
En pie – still standing (structure). La casa todavía está en pie
Esterrar vivo – bury alive
Escala Richter – Richter scale
Escombros – rubble
Grietas – cracks
Hacer erupción – to erupt
Ileso – unscathed or unhurt
Incomunicado –cut off
Intensidad – intensity
Inundación – flood
La Cruz Roja – Red Cross
Lava – lava
Magnitud – magnitude
Maremoto – a tidal wave
Mecerse – to sing back and forth, sway or rock. Roquear means to rock like rock nd roll
Ondas de expansión – shock waves
Ponerse a salvo – to reach safety
Primeros auxilios – first aid
Registrarse – to record (intensity of quake)
Réplica –aftershock
Rescatar – rescue or salvage
Rescatista –rescuer
Restos – remains of a body
Río de lava – lava flow
Sacudir – to shake
Saldo de muertos – death toll
¡Sálvese el que pueda! – every man for himself
Sisimógrafo – Seismograph used to measure earthquakes
Sismólogo – seismologist
Sobrevivientes – survivors
Soccorista – rescuer
Temblor secundario – aftershock
Terremoto – earthquake
Tienda de campaña – tent
Umbral o marco de la puerta – door frame
Volcán – volcano
Vulcanólogo – a volcanologist (person who studies volcanoes)

Tiquismo of the week : Mira lo que tiró el volcán means look what the tide brought in. Said when a friend shows up unexpectedly.