SYNENT

A check-by-check log of one volcanic edifice. Every seismic check keeps its hypocentre depth, magnitude and tremor state, so the section on the home screen is drawn from your own observations rather than a picture of a volcano. HOW THE FOUR HEADLINE NUMBERS ARE BUILT EVENTS​ — Sum of microquake events across every check. SO₂​ — Latest sulphur dioxide flux from the plume log. GPS​ — Latest GPS height change on the edifice. ALERT​ — Level implied by the latest magnitude and tremor. DATA STAYS ON THIS DEVICE Entries, sample data and exports never leave the phone. There is no account, no sync and no network request anywhere in this app. Clearing the archive removes every entry permanently. Field reference only.​ Station registry, alert-level thresholds and gas measurement technique must follow the volcano observatory protocol in force at your site.