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Unknown Infrasonic Event – XIE140718

Unknown Infrasonic Event – XIE140718
Prepared by: ISLA
Distribution Date: 18 July 2014
Source: Unknown
Location: Keauhou, HI
Origin Time: ~4pm HST 07/17/2014 or ~2:00 UTC 07/18/2014
Description: A very large “boom” was reported in the Keauhou area of Kona, along with buildings shaking.
IS Array: I59US, KHLU, InfraSound LAborotory (ISLA) test rig “AACE”
Data Quality: Good, test rig at ISLA was undergoing high frequency noise test

Summary: A large booming noise was reported in Kona near the Keauhou and Kahalu’u area on 07/17/2014 at around 4pm local time. Witnesses say that buildings shook and car alarms went off. The boom was followed by the sound of jets (reported by several witnesses). This signal was clearly recorded at I59US and set off an automated large amplitude alert at ISLA. Continue reading Unknown Infrasonic Event – XIE140718