1989 Loma Prieta earthquake the State office of Emergency Services issued (for the first time in Bay Area history) short term advisories for a possible large earthquake, which meant there was "a slightly increased likelihood of an M6.5 event on the Santa Cruz Mountains segment of the San Andreas fault". The advisories following the two Lake Elsman events were issued in part because of the statements made by WGCEP and because they were two of the three largest shocks to occur along the 1906 earthquake's rupture zone since 1914. The 5.3 June 1988 and the 5.4 August 1989 events also occurred on previously unknown
1989 West Papua earthquake 1989 West Papua earthquake The 1989 West Papua earthquake struck West Papua, Indonesia – then Irian Jaya province – on August 1 with a moment magnitude of 6.0 and a maximum Mercalli intensity of VIII ("Severe"). Around 120 people were killed, mainly due to landslides and mudslides. The West Papua earthquake struck at 9:17 local time and measured 5.7 and 6.0 on the moment magnitude scale. Its epicenter was located south of Jayapura; the earthquake reached as far as Wamena. There were multiple aftershocks. The earthquake killed 120 people and left 120 injured; all of the dead were recovered from