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:
A 4.5 Magnitude earthquake struck the Waimea area of the Big Island this morning:
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.
TSUNAMI ADVISORY IN EFFECT TODAY UNTIL 8AM WEDNESDAY, 4/2/2014.
NO LAND EVACUATIONS ARE NECESSARY; HOWEVER WITH THE OCEAN CURRENTS AND FLUCTUATION CITY OFFICIALS ARE ASKING THE PUBLIC TO STAY OUT OF THE OCEAN AND AWAY FROM SHORELINES AND MARINAS. IN ADDITION, STAY AWAY FROM STREAMS AND CANALS THAT FEED DIRECTLY INTO THE OCEAN. BOATERS NEED TO EXERCISE CAUTION ENTERING AND EXITING HARBORS.
DEM EMERGENCY OPERATIONS CENTER WILL ACTIVATE DUE TO THE TSUNAMI AND CONTINUE TO MONITOR CONDITIONS.
TOMORROW, WEDNESDAY 4/2/2014, THE PUBLIC NEEDS TO STAY OUT OF THE OCEAN AND AWAY FROM SHORELINES AND MARINAS. IN ADDITION, STAY AWAY FROM STREAMS AND CANALS THAT FEED DIRECTLY INTO THE OCEAN. BOATERS NEED TO EXERCISE CAUTION ENTERING AND EXITING HARBORS.
TO – CIVIL DEFENSE IN THE STATE OF HAWAII
SUBJECT – TSUNAMI ADVISORY
A TSUNAMI ADVISORY IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE
AT 0545 PM HST.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME – 0147 PM HST 01 APR 2014
COORDINATES – 19.8 SOUTH 70.8 WEST
LOCATION – OFF THE COAST OF NORTHERN CHILE
MAGNITUDE – 8.2 MOMENT
MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
GAUGE LOCATION LAT LON TIME AMPL PER
——————- —– —— —– ————— —–
JUAN FERNANDEZ 33.6S 78.8W 0215Z 0.16M / 0.5FT 36MIN
SAN FELIX CL 26.3S 80.1W 0137Z 0.68M / 2.2FT 06MIN
COQUIMBO CL 30.0S 71.3W 0138Z 0.15M / 0.5FT 34MIN
CALDERA CL 27.1S 70.8W 0102Z 0.11M / 0.4FT 30MIN
CHANARAL CL 26.4S 70.6W 0133Z 0.24M / 0.8FT 28MIN
CALLAO LA-PUNTA PE 12.1S 77.2W 0158Z 0.12M / 0.4FT 38MIN
ARICA CL 18.5S 70.3W 0116Z 1.83M / 6.0FT 18MIN
MATARANI PE 17.0S 72.1W 0127Z 0.58M / 1.9FT 08MIN
PAPOSO CL 25.0S 70.5W 0125Z 0.26M / 0.9FT 22MIN
PISAGUA CL 19.6S 70.2W 0055Z 2.01M / 6.6FT 12MIN
MEJILLONES CL 23.1S 70.5W 0103Z 0.86M / 2.8FT 34MIN
TOCOPILLA CL 22.1S 70.2W 0109Z 0.42M / 1.4FT 10MIN
DART 32402 26.7S 74.0W 0044Z 0.05M / 0.2FT 44MIN
ANTOFAGASTA CL 23.7S 70.4W 0034Z 0.25M / 0.8FT 18MIN
PATACHE CL 20.8S 70.2W 0015Z 1.51M / 5.0FT 10MIN
IQUIQUE CL 20.2S 70.1W 0005Z 2.11M / 6.9FT 12MIN
LAT – LATITUDE (N-NORTH, S-SOUTH)
LON – LONGITUDE (E-EAST, W-WEST)
TIME – TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL – TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS …NOT… CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER – PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.
NOTE – DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL
MEASUREMENTS AT SIMILAR LOCATIONS.
BASED ON ALL AVAILABLE DATA A MAJOR TSUNAMI IS NOT EXPECTED TO
STRIKE THE STATE OF HAWAII. HOWEVER…SEA LEVEL CHANGES AND
STRONG CURRENTS MAY OCCUR ALONG ALL COASTS THAT COULD BE A HAZARD
TO SWIMMERS AND BOATERS AS WELL AS TO PERSONS NEAR THE SHORE AT
BEACHES AND IN HARBORS AND MARINAS. THE THREAT MAY CONTINUE FOR
SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.
THE ESTIMATED TIME OF ARRIVAL OF THE INITIAL WAVE IS
0324 AM HST WED 02 APR 2014
FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS
WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.
TO - CIVIL DEFENSE IN THE STATE OF HAWAII SUBJECT - TSUNAMI INFORMATION STATEMENT THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION IS REQUIRED AT THIS TIME. HOWEVER... THE TSUNAMI THREAT TO HAWAII IS STILL BEING EVALUATED. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 0147 PM HST 01 APR 2014 COORDINATES - 19.8 SOUTH 70.8 WEST LOCATION - OFF THE COAST OF NORTHERN CHILE MAGNITUDE - 8.0 MOMENT EVALUATION THE PACIFIC TSUNAMI WARNING CENTER HAS ISSUED AN EXPANDING REGIONAL TSUNAMI WARNING AND WATCH FOR PARTS OF THE PACIFIC LOCATED CLOSER TO THE EARTHQUAKE. AN EVALUATION OF THE PACIFIC WIDE TSUNAMI THREAT IS UNDERWAY AND THERE IS A POSSIBILITY THAT HAWAII COULD BE ELEVATED TO A WATCH OR WARNING STATUS. IF TSUNAMI WAVES IMPACT HAWAII THEIR ESTIMATED EARLIEST ARRIVAL TIME IS 0324 AM HST WED 02 APR 2014 FURTHER STATEMENTS WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.
The U.S. Geological Survey has released two new videos about the Great Alaska Earthquake of March 27, 1964 to commemorate the upcoming 50th anniversary of the largest earthquake ever recorded in the United States.
The videos include rare vintage film footage and photos of the earthquake damage, combined with modern interviews with some of the same scientists who first investigated the magnitude 9.2 quake. They tell the story about the scientific discovery that was a significant early contribution to the now widely-accepted theory of plate tectonics.
The two videos, a four-minute, and an 11-minute version of the same story, feature USGS Geologist Emeritus George Plafker who was one of the first geologists on the scene 50 years ago to assess the damage and help with plans for rebuilding. Today, Plafker is still conducting geologic research to better understand the ground response and what the severity of shaking may be during the next big earthquake in Alaska. While the probability of a repeat earthquake of the same magnitude is very low, even a smaller quake of magnitude 7 or 8 can do a significant amount of damage. Plafker’s and other scientists’ research contributes to the safety and resiliency of Alaska communities to future large quakes.
“This is an incredible story. We’ve got great old film footage, revolutionary science and some remarkable geologists who’ve really made a difference,” said USGS video producer Stephen M. Wessells. “It’s been exciting to learn how two generations of scientists have sorted out the details and clarified the threats.”
While examining modern sediment cores drilled in Alaska and brought into the laboratory, Plafker reminisces about his first impressions on the scene immediately after the devastating earthquake and tsunami. His current research is helping scientists understand how frequently earthquakes of that size have occurred in the past. Carbon dating the layers in the core sample, reveals the past 5000 years of prehistory, and gives Plafker a clue about the potential of future activity or occurrences of similar events.
As the anniversary approaches, many educational and historic public events are planned. Check the 1964 Great Alaska Earthquake and Tsunami 50th Anniversary website for an up to date schedule and additional resources
A 3.2 magnitude earthquake struck the Fern Acres area of the Big Island this morning around 2:23 this morning. It initially registered 3.0 on the Richter scale but has been upgraded to a 3.2 magnitude.