Earthquake & Volcano Monitor — 2026-05-19
A magnitude 5.7 earthquake struck near Port Vila, Vanuatu on May 19, with a shallow depth of 27 km felt widely across the region. On the volcanic front, Kīlauea's Halemaʻumaʻu eruption remains paused following Episode 47, while fresh reports document overnight lahars at Reventador, a 400-meter plume from Satsuma, and elevated seismic and infrasound activity at Shishaldin.
Earthquake & Volcano Monitor — 2026-05-19
Seismic Activity
M5.7 — Vanuatu (May 19, 2026)
A strong magnitude 5.7 earthquake struck the Coral Sea approximately 52 km southwest of Port Vila, Shefa Province, Vanuatu on Tuesday, May 19, 2026 at 1:29 pm local time (GMT +11). The quake had a very shallow depth of just 27 km (17 mi) and was felt widely across the area. Shallow-focus earthquakes carry greater potential for surface shaking relative to their magnitude.
Volcanic Watch
Kīlauea, Hawaiʻi — Alert Level: YELLOW/ADVISORY
As of May 17–19, 2026, the Halemaʻumaʻu eruption of Kīlauea is paused following lava fountaining Episode 47. Vent glow and crater floor incandescence continue to be observed. The USGS Hawaiian Volcano Observatory (HVO) maintains an Alert Level of ADVISORY and an Aviation Color Code of YELLOW.
Reventador, Ecuador — Overnight Lahar Activity (May 17, 2026)
Another overnight lahar was recorded at Reventador volcano, continuing a pattern of elevated activity. Reventador is one of Ecuador's most active volcanoes, and lahars — volcanic mudflows — pose ongoing hazards to downstream communities.
Satsuma-Iwojima (Iōtō), Japan — 400-Meter Ash Plume (May 17, 2026)
An eruption producing a 400-meter ash plume was reported at Satsuma volcano on May 17. The event was noted as part of the overnight and early-morning activity logged by volcano monitoring blogs.
Shishaldin, Alaska — Elevated Seismic and Infrasound (May 17–18, 2026)
Shishaldin volcano in Alaska continues to show elevated seismic and infrasound activity. A USGS Alaska Volcano Observatory (AVO) notice from mid-May confirmed ongoing unrest, with the volcano at Alert Level ADVISORY and Aviation Color Code YELLOW.
Earth Science
Global Volcano Count Remains High
According to the Smithsonian Institution's Global Volcanism Program, approximately 40 volcanoes were reporting continuing eruptions as of late March 2026. On any given day, around 20 volcanoes are actively erupting worldwide. This ongoing baseline activity underscores the importance of continuous monitoring networks like USGS's HVO and AVO.
Preparedness Tip — Shallow Earthquakes
Today's M5.7 Vanuatu event serves as a reminder that shallow-focus earthquakes (generally those with focal depths under 70 km) generate stronger ground shaking than deeper events of the same magnitude. Residents in seismically active coastal regions should keep emergency kits accessible and be aware of local tsunami warning protocols, especially following shallow submarine earthquakes. Always verify alerts through official national disaster management agencies.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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