Seismica

Seismica v1.6.0 — Big Update

New Commands

• /seismica spawn foreshock — fires a precursor, then a larger mainshock at the same fault 10-12 minutes later
• /seismica spawn aftershock — adds an aftershock beside the last mainshock
• /seismica spawn micro — a single background tremor (M1.0-M2.6)
• /seismica spawn natural now produces a standalone event with no precursor or aftershock sequence

Live Estimates

• Every device now publishes a revised solution as the event unfolds. A first reading is badly wrong (M3.8 for what turns out to be M5.2), climbs onto the true size over the next few updates, then keeps stepping a tenth either side of it — a solution never fully locks
• Magnitude, depth and located epicentre all drift and settle independently
• All equipment agrees on the same published numbers; a seismograph, radar and broadcaster no longer contradict each other
• Readings freeze once the shaking is over — the last published solution stays on the list instead of vanishing or continuing to age

Analysis Models

• Advanced Radar can license an analysis model: Basic AI (1 diamond) or Pro AI (5 diamonds)
• Pro converges faster and wanders less; Basic commits later and stays looser
• Standard radars and broadcasters always run the basic model; the handheld Richter Meter is looser still, as a single-sensor pocket instrument should be

Radar Interface

• Event list down the right of the scope, showing every quake on the display with its latest solution
• Full MMI colour key down the left (advanced tier)
• Info card in the top-left with the headline event: intensity at the epicentre, magnitude, depth, distance and position
• Advanced rows carry an intensity band and depth; standard rows list magnitude and location

Audio

• Distinct tones as an estimate crosses M2.5, M4.0, M5.5 and M6.5
• Separate chimes for locating a new event and for each published revision
• A dedicated alarm for a significant quake that arrives with no warning sequence at all — nothing in the previous 12 minutes
• Heavy rumble two seconds into any M6.5+ event
• Ground-cracking roar as a fault tears open
• Four building-collapse variants, plus material-specific debris for stone, timber and soil

Simulation

• Earthquake magnitudes now drawn from a weighted table, with the wait before each one scaled to its size — a great quake needs days of built-up stress, a small one comes around quickly
• Micro-quakes run on their own clock every 10-15 minutes and never delay the scheduled events
• Foreshocks scale with the mainshock they precede rather than being a token tremor
• Aftershock sequences no longer collapse into a run of identical minimum-magnitude events
• Depth distribution reworked; hypocentres now sit at realistic crustal depths instead of piling up near the surface
• Depth matters far more to surface intensity — a shallow M7 is devastating where a deep one of the same size is merely strong

Fixes

• Player movement during a quake no longer launches you across the map; jumping mid-shake is a nudge rather than a catapult
• Flying players are now shaken in place instead of being skipped entirely
• Animals bolt from the epicentre from MMI II upward
• Radar contact lists now persist across sessions instead of clearing on world reload
• /seismica stop clears queued mainshocks as well as active events
• /seismica list shows the next scheduled quake's magnitude and any mainshock waiting behind a foreshock
• Radar rendering rewritten — opening a scope no longer causes frame drops
• Terrain map scales with radar zoom

Attribution
Radar sounds and interface conventions from GlobalQuake by xspanger3770, MIT License. Full text included in the download.