Ok.. something simple.. with the hopes an idea can be batted around without too much pilikia..
Watching the tilt up at Kilauea’s summit, and keyed in to the current cycles.. so much rapid deflation during an eruptive event followed by so much slower inflation leading up to another event.. and we are now poised to start the whole cycle over again.. maybe she'll erupt today?
But have you noticed those daily cycles.. during the inflation periods.. of a slightly more inflation every day around noon.. almost like clockwork? Little cycles interspersed in the larger inflation cycles?
Here’s a one week view of the inflation.. where you can see that larger rise happening just around noon each day..
![[Image: UWD-POC-TILT-week.png]](https://volcanoes.usgs.gov/vsc/captures/kilauea/UWD-POC-TILT-week.png)
And here’s a one month view of the same data with those increases in inflation seen at every mid day point in the plot..
![[Image: UWD-POC-TILT-month.png]](https://volcanoes.usgs.gov/vsc/captures/kilauea/UWD-POC-TILT-month.png)
I am assuming that’s the daily diurnal. Once mentioned in this Volcano Watch..
https://www.usgs.gov/observatories/hvo/n...nsequences
Where is says..
"One non-volcanic source of tilt is the heating of the ground that happens on sunny days…"
That isn’t often seen unless the volcano is not inflating or deflating.. when it’s ‘flat’ we see it often.. but (I am assuming) because we have an open system without a build up of pressure at its head we are able to see the atmospheric effects superimposed on the inflation. I find it interesting..
*Note: The images embedded here are dynamic.. ie they are HVO's most recent, and will change over time..
Watching the tilt up at Kilauea’s summit, and keyed in to the current cycles.. so much rapid deflation during an eruptive event followed by so much slower inflation leading up to another event.. and we are now poised to start the whole cycle over again.. maybe she'll erupt today?
But have you noticed those daily cycles.. during the inflation periods.. of a slightly more inflation every day around noon.. almost like clockwork? Little cycles interspersed in the larger inflation cycles?
Here’s a one week view of the inflation.. where you can see that larger rise happening just around noon each day..
![[Image: UWD-POC-TILT-week.png]](https://volcanoes.usgs.gov/vsc/captures/kilauea/UWD-POC-TILT-week.png)
And here’s a one month view of the same data with those increases in inflation seen at every mid day point in the plot..
![[Image: UWD-POC-TILT-month.png]](https://volcanoes.usgs.gov/vsc/captures/kilauea/UWD-POC-TILT-month.png)
I am assuming that’s the daily diurnal. Once mentioned in this Volcano Watch..
https://www.usgs.gov/observatories/hvo/n...nsequences
Where is says..
"One non-volcanic source of tilt is the heating of the ground that happens on sunny days…"
That isn’t often seen unless the volcano is not inflating or deflating.. when it’s ‘flat’ we see it often.. but (I am assuming) because we have an open system without a build up of pressure at its head we are able to see the atmospheric effects superimposed on the inflation. I find it interesting..
*Note: The images embedded here are dynamic.. ie they are HVO's most recent, and will change over time..

