MadaSeismic

Connecting to USGS seismic network…

Magnitude Scale

< 2.0 — Minor
2.0 – 3.9 — Light
4.0 – 4.9 — Moderate
5.0+ — Strong

Geology

Dykes
Faults
Thrusts
📋 Earthquake History & Explorer
Start date
End date
Min mag
Max mag
⏳ Fetching earthquake data…
🌊 No events found for this filter.
Mag Place Date / Time (UTC) Depth Lat Lon Felt Sig. Alert Tsunami
<2
2–4
4–5
5+
Click a row to see event location.
🔔 Earthquake Alerts
Get notified instantly when an earthquake is detected near Madagascar
📱
Browser Push Notifications
Works on Chrome, Firefox, Safari — phone & desktop
Receive instant alerts as browser notifications whenever a new earthquake is detected — no app, no server, no installation needed. The tab must be open for alerts to fire.
✈️
Telegram Bot Alerts
Free • Works on all phones • Includes map location pin
Get detailed earthquake alerts on Telegram with the exact location pin, magnitude, depth, and a link to the full report.
3 easy steps:
1 Open Telegram and search for @MadaSeismicBot
2 Press START or send /subscribe
3 Optionally set your threshold: /threshold 3.5
✈️ Open Telegram Bot
⚙️ Alert Threshold (Push Notifications)
Only receive push alerts for earthquakes above this magnitude
📈 Seismograph — Waveform Analysis
Playback
Zoom
Speed
Style
Z
N
E
P-wave (Primary)
S-wave (Secondary)
Surface waves (Love/Rayleigh)
Scan cursor
Simulated waveform — computed from magnitude, depth & estimated epicentral distance Station: FOMA · Madagascar Seismic Network