Write a comment

A very strong earthquake measuring Magnitude 7.0 has struck Indonesia at a shallow depth of only 10.5km.   The quake has caused SEVERE damage to buildings, roads and other infrastructure.  Injuries and numerous deaths are described as "highly likely."

Tsunami Warning Buoys in the area are in "EVENT" Mode but still awaiting analysis to determine if a Tsunami wave has been generated.  This is a developing story, check back for updates.  8:14 AM EDT Sunday August 5.

 

UPDATE 8:21 AM EDT --

According to the US Geological Survey, the quake rated a level 8 on the Mercali Shake Scale Indiex.  What this means is that the "perceived shaking" was "SEVERE."

 

A localized satellite map of the region shows how widely the earthquake was felt . . . upwards of five hundred MILES from the epicenter:

 

UPDATE 8:29 AM EDT --

Tsunami Buoys are in "EVENT" mode, signaling they have recorded a sudden and dramatic change in the ocean nearby the quake.  One Buoy is showing a large 1.2 Meter upward thrust of water, which likely means a TSUNAMI wave is already heading toward the coastlines of Indonesia AND AUSTRALIA'S northersn and west coasts 

 

 UPDATE 8:46 AM EDT --

Indonesia issues TSUNAMI WARNING...

 

Australia claims they are safe . . . 

Seismotectonics of the Java Region

The Sunda convergent margin extends for 5,600 km from the Bay of Bengal and the Andaman Sea, both located northwest of the map area, towards Sumba Island in the southeast, and then continues eastward as the Banda arc system. This tectonically active margin is a result of the India and Australia plates converging with and subducting beneath the Sunda plate at a rate of approximately 50 to 70 mm/yr. The main physiographic feature associated with this convergent margin is the Sunda-Java Trench, which stretches for 3,000 km parallel to the Java and Sumatra land masses and terminates at 120° E. The convergence of the Indo-Australia and Sunda plates produces two active volcanic arcs: Sunda, which extends from 105 to 122° E and Banda, which extends from 122 to 128° E. The Sunda arc results solely from relatively simple oceanic plate subduction, while the Banda arc represents the transition from oceanic subduction to continental collision, where a complex, broad deforming zone is found.

Based on modern activity, the Banda arc can be divided into three distinct zones: an inactive section, the Wetar Zone - bound by two active segments, the Flores Zone in the west and the Damar Zone in the east. The lack of volcanism in the Wetar Zone is attributed to the collision of Australia with the Sunda plate. The gap in volcanic activity is underlain by a gap in intermediate depth seismicity, which is in contrast to nearly continuous deep seismicity below all three sections of the arc. The Flores Zone is characterized by down-dip compression in the subducted slab at intermediate depths and late Quaternary uplift of the forearc. These unusual features, along with GPS data interpretations, show that the Flores Zone marks the transition between subduction of oceanic crust in the west and the collision of continental crust in the east.

The Java section of the Sunda arc is considered relatively aseismic historically when compared to the highly seismically active Sumatra section, despite both areas being located along the same active subduction margin. Shallow (0-20 km) events have occurred historically in the overlying Sunda plate, causing damage to local and regional communities. A recent example was the May 26, 2006 M6.3 left-lateral strike-slip event, which occurred at a depth of 10 km in central Java, and caused over 5,700 fatalities. Intermediate depth (70-300 km) earthquakes frequently occur beneath Java as a result of intraplate faulting within the Australia slab. Deep (300-650 km) earthquakes occur beneath the Java Sea and the back-arc region to the north of Java. Similar to other intermediate depth events these earthquakes are also associated with intraslab faulting. However, this subduction zone exhibits a gap in seismicity from 250-400 km, interpreted as the transition between extensional and compressional slab stresses. Historic examples of large intraplate events include: the 1903 M8.1 event, 1921 M7.5 event, 1977 M8.3 event, and August 2007 M7.5 event.

Large thrust earthquakes close to the Java trench are typically interplate faulting events along the slab interface between the Australia and Sunda plates. These earthquakes also generally have high tsunamigenic potential due to their shallow hypocentral depths. In some cases, these events have demonstrated slow moment-release, and have been defined as ‘tsunami’ earthquakes, where rupture is large in the weak crustal layers very close to the seafloor. These events are categorized by tsunamis that are significantly larger than predicted by the earthquake’s magnitude. The most notable tsunami earthquakes in the Java region occurred on June 2, 1994 (M7.8) and July 17, 2006 (M7.7). The 1994 event produced a tsunami with wave run-up heights of 13 m, killing over 200 people. The 2006 event produced a tsunami of up to 15 m, and killed 730 people. While both of these tsunami earthquakes were characterized by rupture along thrust faults, they were followed by an abundance of normal faulting aftershocks. These aftershocks are interpreted to result from extension within the subducting Australia plate, while the mainshocks represented interplate faulting between the Australia and Sunda plates.

UPDATE 6:32 PM EDT --

At least 82 people are now known to have died in this earthquake, emergency officials say.  The body count is NOT complete.

Hundreds of people have been injured by the quake, disaster management officials added.

The 7 magnitude tremor damaged thousands of buildings and triggered power cuts.

 

Loading comment... The comment will be refreshed after 00:00.

Be the first to comment.

Say something here...
You are a guest ( Sign Up ? )
or post as a guest
 

 

 

Latest

21 Comments

MASSIVE "IP-FRAGMENTATION" ATTACK WRECKS YOUTUBE & MUCH INTERNET

October 16, 2018
6 Comments

Recording: The Murder of Journalist Jamal Kashoggi Took 7 Minutes; They began Cutting his body apart WHILE HE WAS STILL ALIVE

October 16, 2018
1 Comment

U.S. Is Most Competitive Economy for First Time in a Decade

October 16, 2018
7 Comments

WTF? Saudi Crown Prince Warns Pompeo about ISIS

October 16, 2018
7 Comments

ISRAELI DEFENSE MINISTER: "RED LINE REACHED IN GAZA - WAR!"

October 16, 2018
2 Comments

Ebola Virus outbreak in Congo - 33 cases in past week with 24 of those Dead - Spreading

October 16, 2018
4 Comments

SEARS Files Bankruptcy

October 15, 2018
4 Comments

U.S. F-35 Stealth Fighter Jets CLEARED to fly again

October 14, 2018
11 Comments

WaPo Journalist Kashoggi was CIA Asset!

October 14, 2018
12 Comments

Trump Warns of "Severe Consequences" If Saudi's Murdered Journalist; Saudis Reply: $200+ a Barrel Oil in Retaliation

October 14, 2018
1 Comment

"Leave within 24 Hours or Die" is Ultimatum Given to Rebels / Terrorists around Aleppo, Syria

October 14, 2018
8 Comments

Israeli MoD says its time to strike Hamas with ‘hardest blow’ - WAR

October 14, 2018
7 Comments

Maintenance Tech OPENS FIRE on US F-16, Destroys it and Damages Another in Belgium

October 14, 2018
11 Comments

Sociopath? Psychopath? Both?? Look at the unmitigated garbage California Sent to Congress

October 13, 2018
10 Comments

BREAKING NEWS: SAUDI ARABIA CUTS DIPLOMATIC TIES WITH TURKEY; EJECTS AMBASSADOR, IMPOSES TRAVEL BAN

October 13, 2018