2022 Tonga eruption, pressure readings from Seattle

Barometric Sensor (Arduino compatible)

SparkFun Electronics #8311

USBWeatherBoard datasheet

See also:

https://www.sparkfun.com/products/retired/8311
https://www.sparkfun.com/products/retired/10586
https://www.sparkfun.com/products/retired/12081
https://www.sparkfun.com/products/13674
https://www.sparkfun.com/products/13956

Example data, serial via USB, ~1 Hz sample rate

59594.519489919 1.028493 #35.37,074.03,023.7,074.74,099304,1023,0,040651$
59594.519501655 1.014628 #35.37,074.03,023.7,074.74,099306,1023,0,040652$
59594.519513750 1.044596 #35.37,074.03,023.7,074.74,099303,1023,0,040653$
59594.519525486 1.013904 #35.34,074.03,023.7,074.74,099304,1023,0,040654$
59594.519537407 1.029607 #35.30,074.03,023.7,074.74,099304,1023,0,040655$

Plots for 2022-01-15

Not shown are plots of subsequent days that recorded bi-directional around-the-globe echos of the pressure wave.

Photo (stock image)