Tropical cyclone ·
Cyclone Champi: did the internet go down?
The internet held
No national or nearby regional internet outage in Guam, Philippines, Japan, China, South Korea started within 24 hours after the storm passed.
Tropical depressionTropical stormHurricane / typhoonforecastforecast conewinds ≥ 120 km/h
Guam, Philippines, Japan, China, South Korea
Tropical Storm (maximum wind speed of 296 km/h)
The internet in Guam
Hosts reachable, from a day before to three days after
Outage history| Started (UTC) | After | What we measured | Duration |
|---|---|---|---|
| Oct 17, 2026 17:45 | −15 min | Nationwide: Degraded | 3 days |
Only "degraded", or more than 24 hours later: listed, but not counted as a disruption.
The internet in Philippines
Hosts reachable, from a day before to three days after
Outage historyNo national, regional (within 400 km) or power outage started in Philippines in this window.
The internet in Japan
Hosts reachable, from a day before to three days after
Outage historyNo national, regional (within 400 km) or power outage started in Japan in this window.
The internet in China
Hosts reachable, from a day before to three days after
Outage historyNo national, regional (within 400 km) or power outage started in China in this window.
The internet in South Korea
Hosts reachable, from a day before to three days after
Outage historyNo national, regional (within 400 km) or power outage started in South Korea in this window.
How we check
Every 5 minutes we test thousands of servers and routers in every country from our own probes, combined with IODA. For an earthquake we look at the 72 hours after it, for a storm at the day before to two days after it came closest. We list every national outage, every regional outage within 400 km, and every large power outage.
An outage counts as a disruption when it reached "partial outage" or "blackout" and started within 24 hours. That it started then does not prove the disaster caused it, but a nationwide drop right after a big quake rarely has another reason.
Disaster data: GDACS (European Commission JRC, UN OCHA). GDACS report
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