M7.1 #earthquake near #Java is part of a very deep cluster of normal faulting events within the #subducting slab

There is some variation in the specifics of the #mechanism, but based on depth, location and mechanisms it appears that the M6.7 earthquake near #Tonga and #Samoa is a slab-breaking #earthquake within the #subducting plate https://www.emsc-csem.org/Earthquake/earthquake.php?id=1196464#map

Today's M7.3 #earthquake near #Tonga was a different type of event, generated by compression in the outer rise due to the bending of the #subducting slab. The shallow part of the outer rise is usually experiencing tensional #stresses and produces normal faulting quakes. The deeper section is in compression, causing reverse #faulting #earthquakes, usually with low #tsunami generating potential due to their depth.