Related by context. Frequent words. (Click for all words.) 61 tectonic plates 61 subduction zone 60 continental plates 60 tectonic plate 59 seismically active regions 57 subduction zones 56 Earth crust 55 earth crust 54 active volcanoes 54 active volcanos 54 Cascadia subduction zone 53 Quake shakes 53 quakes 52 Earthquake shakes 52 earthquakes 52 seismic activity 52 Moderate quake 52 temblors 51 volcanically active 51 quake shakes 51 quakes measuring 51 geologically active 51 oceanic crust 51 Volcano erupts 51 continental crust 51 volcanic islands 50 seismically active 50 earthquake jolts 50 earth tremors 50 undersea earthquake 50 magnitude undersea 49 Cascadia Subduction Zone 49 quake rattles 49 earthquake rattles 48 aftershocks rattled 48 subduction 48 Mount Kelud 48 aftershocks measuring 47 undersea quake 47 tremor measuring 47 Kelud 47 volcanoes 47 volcanic activity 47 crustal 47 lithosphere 47 tectonic 47 Strong aftershocks 47 #.# magnitude earthquake 46 temblor centered 46 quake epicenter 46 hydrothermal activity 46 coral atolls 46 pyroclastic flow 46 extinct volcano 46 sedimentary basins 46 #.# Magnitude Earthquake 46 Buildings swayed 45 earth tremor 45 volcano erupts 45 Seismologists 45 varying magnitudes 45 faultline 45 #.# magnitude temblor 45 Quake Hits 45 Richter scale rocked 44 volcanos 44 #.# magnitude quake 44 porphyries 44 lava flows 44 Robinson Crusoe Island 44 magma chamber 44 magma 44 Celebes Sea 44 spewed ash 44 Kilauea Volcano 44 volcanic crater 44 San Andreas Fault 44 agency GNS Science 44 strongest aftershock 44 caldera 44 #km# [004] 44 seismicity 44 mid latitudes 44 Tsunami warnings 44 limestone cave 43 magmatic 43 avalanches 43 marine sediments 43 By NATHAN BURDON 43 Dai ichi complex 43 sedimentary basin 43 hydrothermal alteration 43 magnitude earthquake 43 aftershock 43 densely populated Java 43 Richter scale jolted 43 basalts 43 earthquake 43 seism 43 aftershock measuring 43 Great Kanto Earthquake