Last month the Hunga Tonga volcano began erupting in the Pacific Ocean. The eruption produced a massive shockwave that was recorded by weather stations around the world. The shockwave was also recorded by numerous Diver-Link telemetry stations (barometric sensor within the Diver-Link). Especially our clients recording pressure data at a high frequency (interval < 15 minutes). The graphs below show air pressure data recorded with the Diver-Link in Canada, Uganda and the Netherlands respectively by NouvLR, Vitens Evides International (VEI)* and the municipality of Pijnacker-Nootdorp*. Both shockwaves travelling east- and westwards around the world are visible. Based on this data the speed of the shockwave was approximately 1.100 km/hour!
*VEI would like to thank these clients for providing their data.
