A roundup of the notable hazards our data feeds tracked this week: tropical systems, notable earthquakes, volcanic activity, severe weather alerts.
Tropical Systems
Lala is the Central Pacific’s active tropical system this week, with sustained winds of 69 mph. Moke is the Central Pacific’s active tropical system this week, with sustained winds of 46 mph.
Notable Earthquakes
Near Scotia Sea, the ground moved with a magnitude 6.2 quake. Near 4 km N of Toride, Japan, the ground moved with a magnitude 5.8 quake. Near 78 km S of Gorontalo, Indonesia, the ground moved with a magnitude 4.9 quake.
Volcanic Activity
Great Sitkin is at WATCH alert status, monitored by the avo. Kupreanof is at ADVISORY alert status, monitored by the avo. Shishaldin is at ADVISORY alert status, monitored by the avo. Kilauea is at ADVISORY alert status, monitored by the hvo. Ahyi Seamount is at ADVISORY alert status, monitored by the nmi.
Severe Weather Alerts
18 separate flood warning alerts were active across 3 states this week.
Sourced from the National Hurricane Center, USGS Earthquake and Volcano Hazards Programs, and the National Weather Service — data current as of August 17, 2026.