Przejdź do treści
Teraz

Katastrofy · Kiunga earthquake

Magnitude 5.7 quake strikes northeast of Kiunga; local impact still unconfirmed

Shaking reached Indonesian communities after the inland Papua New Guinea earthquake. Early modeling suggests low impact, but conditions near the epicenter remain unconfirmed.

Napisano 4 min czytania · 26 źródeł

HeyDex

Dostępne po angielsku

In Boven Digoel, on the Indonesian side of the border with Papua New Guinea, the earthquake’s shaking was reported at a level described as clearly felt indoors, like a truck passing. Farther away in Jayapura and Merauke, reports described weaker shaking, felt by a few people and enough to sway lightly suspended objects.⁠9

Those observations establish that people felt the October 29 earthquake across the border. They do not yet answer the more consequential question: what happened to communities closest to its inland epicenter in Papua New Guinea?

The US Geological Survey measured the earthquake at magnitude 5.7, with an epicenter 82 kilometers, or about 51 miles, northeast of Kiunga and a depth of 10 kilometers. It struck at 1:26 p.m. in Papua New Guinea on October 29, 2026—03:26:42 UTC. Kiunga lies southwest of the epicenter; the town is the reference point for the location, not the center of the earthquake.⁠25

Anadolu Agency and News.az reported no immediate accounts of casualties or damage. Neither supplied a confirmed local assessment establishing that nobody was hurt or that buildings escaped damage. The distinction matters: an absence of reports is not a verified zero toll.⁠2⁠1

5.7 mbUSGS body-wave magnitude 25
10 kmDepth in the USGS solution 25
Fewer than 100Modeled exposure to very strong shaking 13

Low estimated impact, not an all-clear

The Global Disaster Alert and Coordination System, or GDACS, gave the earthquake a green assessment, indicating potentially low humanitarian impact based on its magnitude, the population exposed and people’s vulnerability. Its model estimated fewer than 100 people were exposed to Modified Mercalli intensity VII or higher—shaking described as very strong.⁠3⁠13

That figure is an exposure estimate. It is not a count of injuries, rescues or damaged homes, nor does it establish how many people actually experienced that degree of shaking. The useful message is that the model places relatively few people in the strongest estimated shaking zone. It cannot substitute for checking conditions there.⁠13

The weaker shaking reported in Indonesia does not contradict the possibility of stronger shaking nearer the epicenter. Boven Digoel’s reported intensity was III; Jayapura and Merauke’s was II. Those observations describe particular communities, while the GDACS estimate concerns a different area and comes from modeling rather than local reports.⁠9⁠13

Magnitude and intensity answer different questions. Magnitude describes the earthquake itself; intensity describes shaking at a particular place. The USGS measurement is specifically a body-wave magnitude, abbreviated mb, based on seismic waves traveling through Earth’s interior. It should not be relabeled as moment magnitude or a Richter-scale reading.⁠25

A separate early loss-estimate indicator remains unresolved. The initial USGS source record listed no PAGER alert level, while secondary event pages, including Faultline and SatMeteo, reported green. The current official PAGER level has not been confirmed. Neither an empty alert field nor a green loss estimate establishes the actual casualty or damage toll. The verified GDACS green assessment should not be used to fill that separate information gap.⁠4⁠15⁠7

Two agencies, different earthquake measurements

Indonesia’s Meteorology, Climatology and Geophysics Agency, BMKG, calculated different parameters for the same earthquake. Its initial bulletin listed magnitude 6.0 at a depth of 120 kilometers, about 175 kilometers northeast of Bovendigoel. Its updated analysis put the earthquake at magnitude 5.9 and 42 kilometers deep, inland about 171 kilometers southeast of Oksibil.⁠9

That was a revision within the Indonesian analysis—not a change to the separate USGS measurement of 5.7 mb at 10 kilometers deep. The two agencies’ depth estimates remain substantially different and should not be blended into one figure. BMKG’s updated analysis also identified active-fault movement with a strike-slip mechanism, meaning the fault moved mainly sideways.⁠9⁠25

The timestamps likewise need separating. BMKG’s updated origin time was 03:26:48 UTC, six seconds later than the USGS time rounded to the second. The Indonesian bulletin’s 10:29:32 a.m. Western Indonesian Time timestamp was its release time, not evidence of another shock.⁠9⁠25

BMKG’s tsunami modeling found “no tsunami potential,” according to the statement signed by its earthquake and tsunami director, Wijayanto. That is a specific assessment from the Indonesian agency, rather than an interpretation of the USGS database’s no-tsunami flag. No tsunami bulletin from Papua New Guinea authorities has been established in the available reporting.⁠9⁠4

BMKG reported no aftershock activity detected through 03:55 UTC, about half an hour after the earthquake. That observation has a cutoff: it is not a prediction that aftershocks cannot occur. The agency said it would continue monitoring.⁠9

Its advice was to remain calm, reject unsupported rumors and avoid buildings cracked or damaged by shaking. That was precautionary guidance, not confirmation that damaged buildings had been found. For now, the evidence supports cautious reassurance about the likely overall impact—but the missing local assessment near the epicenter is still the difference between a favorable estimate and a confirmed outcome.⁠9⁠13

Źródła15

Spośród cytowanych źródeł earthquakes.co.uk opublikował jako pierwszy, 5 godzin przed emisją tej relacji. Potem opublikowało 10 kolejnych mediów.
  1. earthquakes.co.uk
  2. Faultline
  3. SatMeteo
  4. USGS
  5. GDACS
  6. https://economy.okezone.com/
  7. Anadolu Ajansı
  8. Negocios.com
  9. +3 kolejne media
  10. HeyDay News

1 starszy materiał wykorzystany jako tło.4 media bez daty:BMKG - Badan Meteorologi, Klimatologi, dan Geofisikabreakingthenews.netearthquakelist.orgquakescan.com

Wszystkie źródła według medium

26 źródeł z 15 redakcji· Najczęściej cytowane najpierw

Wersja z emisji
  1. A magnitude 5.7 earthquake struck inland northeast of Kiunga.
  2. The quake was just 10 kilometers deep, and people across the Indonesian border felt the shaking. Early modeling suggests low humanitarian impact, but conditions closest to the epicenter still need a confirmed local assessment. How much harm did the shaking cause there?
  3. The epicenter was 82 kilometers northeast of Kiunga, in Papua New Guinea. That's about 51 miles from the town. Kiunga lies southwest of the epicenter, while the communities reporting shaking across the border are in Indonesia.
  4. The earthquake struck on October 29, 2026, at about 1:26 in the afternoon in Papua New Guinea. Its magnitude was measured using body waves, seismic waves that travel through the Earth's interior. The technical abbreviation for that measurement is mb.
  5. Disaster modeling estimates fewer than 100 people were exposed to very strong shaking. That's intensity seven or higher on the Modified Mercalli scale, which describes shaking at a particular location. The figure estimates population exposure, rather than counting injuries.
  6. The green humanitarian assessment points to potentially low impact. It combines the earthquake's magnitude with the exposed population and people's vulnerability. No casualties or damage were immediately reported, but the actual toll still depends on information from the ground.
  7. The earthquake loss-estimate system called PAGER has conflicting early alert information. An initial entry listed no alert level, while secondary listings showed green. Its current official level hasn't been confirmed. These alerts estimate possible losses before local assessments establish the impact.
  8. Indonesia's earthquake agency initially calculated a magnitude of 6.0 and a depth of 120 kilometers. It then revised its own analysis. Those changes belong to the Indonesian calculation; the separate American measurement remains 5.7 at 10 kilometers deep.
  9. Indonesia's updated calculation puts the magnitude at 5.9 and the depth at 42 kilometers. It places the epicenter inland, 171 kilometers southeast of Oksibil. The initial location was described as 175 kilometers northeast of Bovendigoel.
  10. The Indonesian origin estimate is six seconds later than the American estimate. Both describe this earthquake. The Indonesian bulletin's later release time marks when the information was issued. It doesn't mark another shock.
  11. Active-fault movement caused the earthquake in the Indonesian analysis. That analysis identifies a strike-slip mechanism, meaning the fault moved mainly sideways. Its updated location puts the earthquake on land, near the border separating Papua New Guinea from Indonesia.
  12. People in three Indonesian communities described weaker shaking than the very strong level modeled closer to the epicenter. Magnitude measures the earthquake itself. Intensity describes what the shaking is like in each place, so it varies from community to community.
  13. In Boven Digoel, people felt intensity three shaking clearly indoors, like a truck passing. Jayapura and Merauke registered intensity two. A few people felt it there, and lightly suspended objects swung. Those observations describe shaking farther from the epicenter.
  14. Stronger shaking nearer the epicenter remains possible within the exposure model. The observations from Indonesian communities and the modeled exposure in Papua New Guinea describe different places, and they serve different purposes.
  15. Indonesia's earthquake agency found no tsunami potential in its modeling. Its earthquake and tsunami director signed that assessment. The conclusion comes from the Indonesian analysis, which provides a more specific assessment than the earthquake database's simple no-tsunami flag.
  16. Indonesian monitoring detected no aftershock activity through about half an hour after the earthquake. Aftershocks could still occur. The agency said it would continue monitoring and update the public.
  17. Its safety advice was to remain calm, reject unsupported rumors, and avoid buildings cracked or damaged by shaking. That was precautionary guidance. Shaking is documented across the border, and modeling suggests limited humanitarian impact. Conditions near the epicenter still await a confirmed local casualty and damage assessment.

Ostatnio na antenie