An Mw 6.9 earthquake hit Hawaii Island on May 4, 2018. It happened near Kīlauea’s south flank. A foreshock of Mw ~5.4 preceded the main event. Shocks above Mw 4.5 continued within 30 minutes. A minor tsunami was observed at Hawaii shores, with peak waves about 40 cm. USGS HVO linked the quake to thrust fault slip beneath the volcano’s southeastern flank. No widespread tsunami occurred, though local effects and seismicity persisted for months.
On May 4, 2018, a powerful magnitude-6.9 earthquake on the south flank of Kīlauea Volcano shook the Island of Hawai‘i. It was the largest quake in Hawaii in 43 years. Today, more than five months later, smaller-magnitude earthquakes in the same area are still occurring.
www.usgs.govThe 4 May 2018 (Mw 6.9) earthquake offshore of Kilauea Volcano has raised concerns about potential impacts of locally generated tsunamis in Hawaii. Iterative inversion of global seismic observations guided by forward modeling of regional geodetic and tsunami records yields a self-consistent fault slip model to quantify the physical processes. This earthquake, similar to other large events in the area, is found to involve a shallowly dipping thrust fault, plausibly on the décollement between...
repository.library.noaa.gov2018 Hawaii earthquake facts for kids
kids.kiddle.coThe 2018 Kīlauea eruption produced unprecedented levels of seismicity in the volcano’s instrumented history. The USGS Hawaiian Volcano Observatory documented about 80,000 earthquakes during the three-month-long eruption, starting with the dramatic collapse of the Puʻu ʻŌʻō cone on April 30 and ending with the final Kīlauea summit caldera collapse event on August 5. The sequence included a magnitude-6.9 south flank earthquake, the largest for Hawaii in 45 years. HVO seismologist Brian Shiro...
www.usgs.govThe U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-6.9 earthquake on Friday, May 4, 2018, at approximately 12:32 p.m. HST. It is the strongest quake in Hawaii since 1975—and the largest in a series of strong earthquakes that began at 11:32 a.m. today. According to the Pacific Tsunami Warning Center (PTWC) no tsunami was generated by today’s earthquakes.
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