Koh Lanta nature
Tides & sea
Tide forecast — Saladan, Ko Lanta
Harmonic model · Andaman Sea| Date | High tides | Low tides |
|---|
Computed from harmonic constituents calibrated for Ko Lanta (Saladan). Indicative only — not for navigation.
Seismic
Andaman shelf · recent events
USGS feed · earthquake.usgs.gov| Mag | Location | Depth | When | |
|---|---|---|---|---|
| 4.6 | 61 km W of Banda Aceh, Indonesia | 98 km | 8 Oct | Full report → |
| 4.7 | 115 km WSW of Banda Aceh, Indonesia | 46 km | 28 Sept | Full report → |
FAQ
Where does Koh Lanta's earthquake data come from?
Seismic events come from the United States Geological Survey (USGS), through their public earthquake data feed. We surface it live for the Koh Lanta area and do not collect it ourselves.
What counts as an earthquake event on this page?
We list earthquakes of magnitude 4.5 or greater inside the Andaman Sea box, from latitude 5°N to 15°N and longitude 90°E to 100°E.
How often is the seismic data refreshed?
The page tracks the USGS feed automatically through the day and lists qualifying events as they are published.
How accurate are the Ko Lanta tide predictions?
Predictions use the standard harmonic tidal model calibrated for Ko Lanta / Saladan. Accuracy is typically within 20 cm and 30 minutes — good for planning diving, kayaking, or beach visits. For safety-critical navigation, use official Thai Marine Department publications.
What is chart datum at Ko Lanta?
Chart datum at Saladan is approximately 0.6 m below Mean Sea Level. Heights shown are metres above chart datum. Around 0.0 m is very low tide; 1.5 m or above is a high spring tide.