Source: United States Geological Survey (USGS); Indonesia Tsunami Early Warning System (InaTEWS), Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG); Copernicus; National Oceanic and Atmospheric Administration (NOAA); NGDC/WDS Global Historical Tsunami Database; Pacific Northwest Seismic Network; WorldPop Project, University of Southampton (www.worldpop.org); Planet Labs; Maps4News; Open Street Map; Reuters
By Christian Inton, Weiyi Cai, Jin Wu and Gurman Bhatia | REUTERS GRAPHICS
Additional reporting by Gayatri Suroyo, Fransiska Nangoy and Fergus Jensen