# Thunder and lightning **URL:** \ **Category:** Tempest Owners\ **Created:** [April 24, 2019, 9:08pm UTC](https://community.tempest.earth/t/thunder-and-lightning/3426 "2019-04-24T21:08:38Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![sunny](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/sunny/32/16368_2.png) [@sunny](https://community.tempest.earth/u/sunny)\ **Post date:** [April 24, 2019, 9:08pm UTC](https://community.tempest.earth/t/thunder-and-lightning/3426/1 "2019-04-24T21:08:38Z")
Well just the lightning, but we don’t get too many thunderstorms, so it is really nice to see a real one approaching. Perhaps with some ultra low frequency microphones we could detect the thunder from far away as well. I’m told that those can even detect erupting vulcanoes a 1000 km away. ![Untitled-2](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex020/uploads/sws/original/2X/0/0874321d67e9ae4169eb314b14b5d90a4bd66661.jpeg) ---
**Author:** ![eric](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/eric/32/13553_2.png) [@eric](https://community.tempest.earth/u/eric)\ **Post date:** [April 25, 2019, 5:10am UTC](https://community.tempest.earth/t/thunder-and-lightning/3426/2 "2019-04-25T05:10:21Z")
Guess you’re thinking a the [shake network](https://raspberryshake.org) ?? Blitzortung has been looking in this but seems the results for lightning isn’t conclusive and it is way more difficult to isolate a thunder in all the sound and even worse to triangulate position. Maybe one day … ---
**Author:** ![sunny](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/sunny/32/16368_2.png) [@sunny](https://community.tempest.earth/u/sunny)\ **Post date:** [April 25, 2019, 5:33am UTC](https://community.tempest.earth/t/thunder-and-lightning/3426/3 "2019-04-25T05:33:06Z")
I didn’t read everything on the shake network but from first looks I get the impression that they use seismologic sensors. They do pick up infrasounds but I have no idea about the frequency range. The sensors I was informed about are barometric sensors. A small array of them is used to detect the direction of the infrasound. I can imagine that this has a higher frequency response then the shake method. Any way it wasn’t a too serious remark, it was the result of my brain triggering on the phrase thunder and lightning. ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [April 26, 2019, 12:17am UTC](https://community.tempest.earth/t/thunder-and-lightning/3426/4 "2019-04-26T00:17:51Z")
Thunder is caused by the sudden increase in pressure and temperature which produces rapid expansion of the air. It’s not easy to determine the exact cause.