The USGS Hawaiian Volcano Observatory (HVO) recorded a shallow M4.4 earthquake beneath Mauna Kea's northwest flank at 19:27 UTC (09:27 HST) on Monday, December 14, 2020. The epicenter was located about 20 km (12 miles) SE of Waimea, and 52 km (32 miles) WNW of…
Seismic activity increased on Mauna Loa's northwest flank on December 4, 2020, with M4.1 earthquake and clusters of small, shallow earthquakes occurring closely in time and location. The volcano is not erupting but the rates of deformation and seismicity have…
The Hawaiian Volcano Observatory (HVO) has recorded over 130 earthquakes beneath the NE top of the Ka‘ōiki fault system, northwest of Kīlauea's summit, on October 22 and 23, 2020. Other Kīlauea monitoring data streams remain stable and show no signs of…
The eyewall of Hurricane "Douglas" passed just north of Oahu on Sunday night (LT), July 26, 2020, sparing Hawaii of the storm's worst. At 15:00 UTC (05:00 LT) on Monday, July 27, the center of the storm was located about 149 km (90 miles) northwest of…
A recent study by the University of Hawaii examined the impacts of the 2018 Hurricane "Lane" and revealed that preceding moisture conditions brought by the storm exacerbated fire hazards, and both fire and rain severity were impacted by the hurricane…
USGS seismologists have detected deep long-period earthquakes beneath the dormant Mauna Kea volcano in Hawaii at depths of about 20 to 25 km (12 to 15 miles) occurring with surprising regularity every 7 to 12 minutes. While low-frequency earthquakes are not unusual,…
Category 2 Hurricane "Douglas" continues moving WNW toward Hawaii and is expected to be near hurricane strength when it nears the islands Saturday night (LT) through Sunday, July 25 and 26, 2020. Key messages issued by NHC: Douglas continues to approach…
Category 4 Hurricane "Douglas" is entering the Central Pacific on its way toward Hawaii. There are still no coastal watches or warnings in effect, but interests in the Hawaiian Islands should monitor its progress as watches could be issued on Friday, July…
Tropical Storm "Douglas" became the first hurricane of the 2020 eastern Pacific hurricane season at 15:00 UTC on July 22, 2020, and then rapidly strengthened into a major hurricane by 09:00 UTC on July 23. The only years with later first eastern North…
Tropical Storm "Douglas" formed at 07:00 UTC on Tuesday, July 21, 2020, as the fourth named storm of the 2020 Pacific hurricane season. The storm is moving west and is expected to become a hurricane soon. It is expected to continue heading W and weaken…
