Archive for the ‘Tsunami’ Category
6/16/1896: A tsunami originating from an earthquake in the Japan Trench claims up to 27,000 lives
Sunday, June 16th, 20192/5/1783: In southern Italy, 80,000 people died in the estimated 7.5-8M earthquake and tsunami of 1783
Tuesday, February 5th, 2019
Malaysia tsunami: At least 222 people were killed, more than 800 were injured
Monday, December 24th, 2018A tsunami hit Pandeglang, Serang and South Lampung, Indonesia, Saturday night with at least 168 people killed and at least another 745 missing.
Sunday, December 23rd, 2018All Saint’s Day, 1755: A series of 3 earthquakes + a 20′ tsunami hits Lisbon, Portugal, killing as many as 50,000 people
Thursday, November 1st, 2018https://www.youtube.com/watch?v=FGhv6zcBPxQ
In little more than half a century, Sulawesi has endured dozens of earthquakes, landslides, floods, tsunamis and volcanic eruptions.
Sunday, October 7th, 2018- “….At least 1,649 people have been confirmed killed by the twin natural disasters on Sept. 28. Many more are believed to have died, been buried under soil, swept away by waves or trapped in a tangle of crushed buildings that will take months, if not years, to clear.….”
What happened to Indonesia’s early warning system for tsunami detection?
Wednesday, October 3rd, 2018- Indonesia’s system, completed in 2008, consists of seismographic sensors, buoys (record changes in the sea level), tidal gauges (measure changes in sea level every 15 minutes and send the data to the national meteorological agency) and GPS.
- None of the 22 buoys was operational (vandalism and lack of maintenance)
- No data observation equipment near enough to Palu to measure tidal changes in the immediate area.
- After Friday’s earthquake struck, all three tsunami waves hit the area fewer than 11 minutes later.
This diagram shows how tsunami wave information in the deep ocean is transmitted from DART systems via satellite to NOAA’s tsunami warning centers.