Latest News About 2018 Hawaii Earthquake

Here’s the latest widely reported information about the 2018 Hawaii earthquake.

What happened

• The major event was a magnitude 6.9 earthquake on May 4, 2018, centered on the south flank of Kīlauea on the island of Hawaiʻi. It was the largest earthquake in Hawaii in decades and occurred during the early phase of the 2018 Kīlauea eruption sequence. The USGS Hawaiian Volcano Observatory assessed it as part of the ongoing seismicity linked to lava activity in the region.[1][2]
• A smaller preceding event (about M5.4) was felt across the island, including on Oʻahu, and helped precede the larger 6.9 quake in the same sequence.[2]

Impact

• The 6.9 event had strong ground shaking (Mercalli intensity up to VIII in some areas) and caused a minor tsunami in parts of the coast, though it did not produce a large tsunami threat according to the Pacific Tsunami Warning Center.[2]
• The quake contributed to continued aftershocks for months and was followed by ongoing volcanic and seismic activity in the region as Kīlauea continued to erupt and relocate lava flows during that period.[5]

Context and follow-up

• USGS and local authorities tracked aftershocks and the evolving volcanic activity for months afterward, noting that smaller earthquakes continued in the same area well into the latter half of 2018 as part of the broader eruption sequence.[5]
• Several in-depth analyses and reports (including USGS Volcano Watch pieces and academic summaries) discussed the event's mechanics, its relation to flank faults, and implications for future hazard assessments in Hawaii.[6][5]

Alternative sources if you want more detail

• USGS HVO press releases and Volcano Watch articles from 2018 for official measurements, aftershock timelines, and hazard context.[1][5]
• Wikipedia’s summary of the 2018 Hawaii earthquake provides a consolidated account of the event, aftershocks, felt reports, and related tsunami observations.[2]

Would you like a concise, date-stamped timeline of the key moments on May 4, 2018, with magnitudes and felt reports, or a brief comparison table of the 2018 events versus the earlier 1975 Hawaii earthquake for context? I can assemble that with precise citations.