HAWAIIAN VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Monday, June 22, 2026, 7:19 AM HST (Monday, June 22, 2026, 17:19 UTC)

Hawaiian Volcano Observatory Volcano Observatory

Summary: A magnitude-3.8 earthquake occurred 13 miles (21 km) south of Hōnaunau-Nāpōʻopoʻo on the Island of Hawaiʻi at a depth of 3 mi (6 km) below sea level at 6:20 a.m. HST on June 22, 2026.
 

On Monday, June 22, 6:20 a.m. HST, a magnitude-3.8 earthquake occurred 13 mi (21 km) south of Hōnaunau-Nāpōʻopoʻo on the Island of Hawaiʻi at a depth of 3 mi (6 km) below sea level. The earthquake had no apparent impact on the magmatic systems of either Mauna Loa or Kīlauea volcanoes. 

The depth, location, and recorded seismic waves of the earthquake suggest a source due to stress within the west flank of Mauna Loa volcano.  This earthquake is probably not related to the magnitude-6 earthquake that occurred on May 22, which was related to stress from the weight of the island on the underlying rigid mantle.  Weak shaking was reported during this event, which is not expected to cause significant damage.    

The USGS Hawaiian Volcano Observatory continues to monitor Hawaiian volcanoes for any changes. 

EARTHQUAKE DESCRIPTION 

• Magnitude: 3.8 
• Date and Time: June 22, 2026, at 6:20 a.m. HST 
• Location: 13 mi (21 km) S of Hōnaunau-Nāpōʻopoʻo 
• Depth: 3 mi (6 km) below sea level 
• Aftershocks are possible in the coming days to weeks 

EARTHQUAKE INTENSITY AND AFFECTED AREA 

• Potential Damage: No damage to buildings or infrastructure expected based on earthquake intensity 
• Maximum Intensity, Modified Mercalli Scale (https://www.usgs.gov/natural-hazards/earthquake-hazards/science/modified-mercalli-intensity-scale) 
• Community-reported: III - weak shaking 
• Instrument-derived: III - weak shaking 
• Felt Reports: More than 38 within the first hour (https://earthquake.usgs.gov/dyfi/) 
• Felt Area: Widely on the southern and western areas of the Island of Hawaiʻi. 
• Visit NOAA’s Tsunami Warning Center website for updated information: https://www.tsunami.gov/ 

EARTHQUAKE MAPS AND ADDITIONAL INFORMATION 

• USGS National Earthquake Information Center Maps and Reports for this Event: https://earthquake.usgs.gov/earthquakes/eventpage/hv74988627 
• USGS-HVO Interactive Earthquake Map of Hawaiʻi: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/earthquakes 

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawaiʻi and American Samoa.

CONTACT INFORMATION:

askHVO@usgs.gov

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/
Summary of volcanic hazards from eruptions: https://www.usgs.gov/observatories/hvo/hazards
Recent earthquakes in Hawaiʻi (map and list): https://www.usgs.gov/observatories/hvo
Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes