A 3.5 magnitude earthquake shook the Volcano area of the Big Island this afternoon:
A small earthquake of magnitude 3.6 occurred yesterday evening at 6 p.m. near the summit of the volcano. Over the past 24 hours, small amounts of lava flowed onto the floor of Puʻu ʻŌʻō.
Webcam images show that small amounts of lava flowed onto the crater floor from two of the incandescent vents within the Puʻu ʻŌʻō crater. Yesterday, shortly before noon, and at around 10 p.m., lava flowed onto the floor from a vent on the east side of the crater, while this morning at around 6 a.m., lava flowed from one of the vents on the west side of the crater.
Yesterday, Hawaii Volcano Observatory elevated the advisory level for Mauna Loa and now folks all over the Big Island are wondering when and if she will erupt again!
Here are the Mauna Loa weekly earthquake rates between 2010 and September 17, 2015.
TOP: Blue bars indicate the number of earthquakes that were located by the USGS Hawaiian Volcano Observatory seismic network. Earthquakes of all magnitudes are plotted. Subtle increases in earthquake rates started in mid-2013, while more obvious changes in rates started in 2014.
BOTTOM: Change in distance across Mauna Loa’s summit caldera between 2010 and September 17, 2015. Blue dots indicate the relative distance between two stations that span the summit caldera of Mauna Loa, shown in the map on the upper left. Sustained extension across the caldera started in mid-2014. This extension is one of the indicators of magma infilling a complex reservoir system beneath the summit and upper Southwest Rift Zone.
The earthquake that happened yesterday evening has been upgraded to a 5.2 magnitude earthquake.
TO – EMERGENCY MANAGEMENT IN THE STATE OF HAWAII
SUBJECT – LOCAL TSUNAMI INFORMATION STATEMENT
THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
- ORIGIN TIME – 1010 PM HST 27 JUN 2015
- COORDINATES – 19.3 NORTH 155.2 WEST
- LOCATION – IN THE HILINA REGION OF KILAUEA VOLCANO
- MAGNITUDE – 4.8
NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER…SOME AREAS MAY HAVE EXPERIENCED SHAKING.
THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.
Two earthquakes registering 3.3 magnitude (UPDATE: one of them has been updated to a 3.4 magnitude quake) on the Richter Scale were registered in the Volcano area of the Big Island this evening.
Here are the links to the latest earthquake reports:
18 earthquakes were registered within a few minutes of each other early this morning near the Pu’u O’o crater!
Summit Observations: Weak inflationary ground tilt recorded at the summit over the past 3+ days continued to weaken. There was a swarm of earthquakes in the upper east rift zone early this morning; 18 quakes occurred within a few minutes of 1 am.
The summit lava lake has shown minor fluctuations associated with changes in spattering behavior, which are also manifested as variations in tremor amplitudes and gas release but no net change in level which was measured at around 48 m (160 ft) below the lip of the Overlook crater Tuesday morning.
Small amounts of particulate material were carried aloft by the plume. The average emission rate of sulfur dioxide was around 5,400 tonnes/day for the week ending on January 6.
A 4.5 Magnitude earthquake struck the Waimea area of the Big Island this morning:
Many Big Island residents may not have felt it as we are also preparing for Hurricane Iselle to hit us within the next 12 hours:
Just after 10 AM this morning, the southeastern wall of the Overlook crater, in Halemaʻumaʻu, collapsed and fell into the summit lava lake.
This triggered a small explosive event that threw spatter bombs onto the rim of Halemaʻumaʻu at the site of the tourist overlook, closed since 2008.
The lava fragments ejected ranged in size from dust-sized particles up to spatter bombs about 70 cm (~30 inches) across.
As has been seen with almost all previous explosive events at Halemaʻumaʻu since 2008, the spatter that was ejected was coated in dust and filled with small lithic fragments – clear evidence of the involvement of lithic wall rock.
Spatter landed on wooden fencing laying on the ground at the closed tourist overlook, igniting it in a few places.
The part of the Overlook crater wall that collapsed is evident in the center of this photo by its white color.
Filed under: Announcements, Big Island, Earthquakes, Environment, Hawaii, Hawaiian, Something New?, Unexplained Phenomenon | Tagged: Halemaumau, Hawaii volcanoes Observatory, Spatter Bombs | Leave a comment »
The Hawaii Emergency Management Agency (HI-EMA), formerly known as State Civil Defense, encourages members of the public to sign up for local emergency notifications provided by county civil defense and emergency management agencies.
- Kauai – www.kauai.gov
- Oahu – www.nixle.com
- Maui – www.co.maui.hi.us/list.aspx
- Hawaii Island – Email email@example.com and request enrollment to the emergency notification system. Include your mobile phone number.
On June 30, 2014, Sprint Relay Hawaii discontinued its emergency notification system that the company had been providing free of charge for 6 years. Relay Hawaii was designed to provide Short Message Service (SMS)/text messages on natural disasters and other emergencies to the deaf and hard of hearing community.
“Sprint Relay Hawaii has been a terrific partner in providing warning of approaching hazards and emergencies, and we are grateful for the services it provided,” said Doug Mayne, Administrator for Emergency Management. “Individuals are urged to update notice subscriptions with alternatives. Having a reliable way to get information on local dangers is crucial to making sure an emergency doesn’t turn into a disaster.”
Wireless Emergency Alerts (WEA) are also available through the federal government for people with WEA-enabled phones. Go to http://www.ready.gov/alerts for more information.
TO - CIVIL DEFENSE IN THE STATE OF HAWAII SUBJECT - TSUNAMI INFORMATION STATEMENT THE MAGNITUDE IS REVISED DOWNWARD FROM 8.3 TO 7.8 IN THIS MESSAGE. THERE IS NO TSUNAMI THREAT TO HAWAII. THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 1015 AM HST 12 APR 2014 COORDINATES - 11.3 SOUTH 162.3 EAST LOCATION - SOLOMON ISLANDS MAGNITUDE - 7.8 MOMENT EVALUATION BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS ADDITIONAL DATA ARE RECEIVED.