Astrometeorology, Geophysical Data and Verification of a Previously Published Assessment
Indonesia was struck by two powerful earthquakes on August 15, 2026, with major seismic activity occurring within hours in two different parts of the country.
The first and most destructive event, a magnitude 7.7 earthquake, struck the region of Flores, in eastern Indonesia.
Several hours later, a second powerful earthquake of magnitude 6.9 occurred in Sumatra, in the western part of the country.
Beyond the magnitude of the two events, however, there is another aspect that deserves particular attention.
Both earthquakes occurred in geographical regions that had been specifically identified in our previously published study, “Astrometeorology and Tectonic Shifts — August 2026,” as areas of considerable geological interest.
The English study was published on August 13, before the earthquakes occurred.
And the geographical correspondence between that assessment and the events of August 15 is particularly noteworthy.
M7.7 Earthquake Strikes Flores
The first major earthquake struck the island of Flores during the early hours of August 15.
The magnitude 7.7 earthquake occurred at approximately 05:58 local time, with its epicentre located offshore, north of Flores and approximately 68 kilometres north-northwest of the city of Ende.
Estimates of the focal depth varied between seismological agencies, with some assessments placing the earthquake at a relatively shallow depth.
The earthquake caused extensive damage across affected areas.
According to the latest available information, at least 47 people were reported dead, while others were injured. Buildings were damaged or destroyed, landslides affected roads and access routes, and disruptions to electricity and communications complicated rescue operations.
Some remote communities remained difficult to reach, meaning that the final extent of the destruction could not immediately be established.
A tsunami warning was issued following the earthquake and was later cancelled.
Small tsunami waves were nevertheless recorded along parts of the coastline, with reports indicating a maximum wave height of approximately 1.61 metres near Riung.
The main earthquake was followed by intense aftershock activity, including events exceeding magnitude 6.
Flores has experienced destructive earthquakes before.
The catastrophic 1992 Flores earthquake and tsunami remains one of the most significant seismic disasters in the modern history of the region and illustrates the exceptional tectonic complexity of this part of Indonesia.
A Second Powerful Earthquake Strikes Sumatra
Only several hours after the Flores earthquake, another major seismic event occurred in Indonesia.
At approximately 17:54 local time, a magnitude 6.9 earthquake struck Sumatra.
The epicentral area was located near Pematangsiantar in North Sumatra, while the focal depth was estimated at approximately 183 kilometres.
The considerable depth of this second earthquake significantly reduced its destructive potential at the surface.
Initial reports did not indicate casualties or major structural damage comparable with those caused by the Flores earthquake.
Nevertheless, the occurrence of two powerful earthquakes within the same country and on the same day immediately raised an important question for our ongoing astrometeorological research.
Where exactly had our August study placed Indonesia within the broader geographical picture?
What We Published Before the Earthquakes
On August 13, before these events occurred, our English-language study “Astrometeorology and Tectonic Shifts — August 2026” identified the Pacific Ring of Fire as the principal geographical region of interest for the month.
The original study stated that the most sensitive areas included Japan, the Philippines, Indonesia, the Kamchatka Peninsula, the Kuril Islands, the Aleutian Islands and the western margins of the American continents.
But the analysis did not stop at identifying Indonesia as a whole.
A separate section was devoted specifically to the country.
The original text stated:
“Sumatra, Java, Sulawesi and the Lesser Sunda Islands remain areas of considerable geological interest.”
This is where the subsequent events become particularly interesting.
Flores is part of the Lesser Sunda Islands.
On August 15, Flores was struck by the M7.7 earthquake.
Sumatra was separately and explicitly identified in the original study.
Several hours after the Flores earthquake, Sumatra experienced the M6.9 earthquake.
The geographical correspondence can therefore be expressed very simply:
Flores → Lesser Sunda Islands → M7.7
Sumatra → M6.9
Two geographical regions specifically highlighted in the original August study subsequently experienced major seismic activity on the same day.
The original English study can be read here:
Astrometeorology and Tectonic Shifts — August 2026
The Pacific Ring of Fire in Focus
Indonesia occupies one of the most complex tectonic environments on Earth.
It lies within the Pacific Ring of Fire, where several major tectonic systems interact and where seismic and volcanic activity is exceptionally intense.
Our August analysis therefore placed the Pacific Ring of Fire at the centre of the geographical assessment.
Indonesia was specifically included among its most sensitive regions, together with Japan, the Philippines, Kamchatka, the Kuril Islands, the Aleutian Islands and the western margins of the Americas.
Within Indonesia itself, our attention was directed toward Sumatra, Java, Sulawesi and the Lesser Sunda Islands.
The events of August 15 now allow us to compare that previously published geographical assessment with subsequent seismic activity.
The Timing Is Also Significant
Geography is not the only point of correspondence.
The timing of the earthquakes is also relevant to the original astrometeorological analysis.
One of the principal planetary configurations examined for August was the Jupiter–Pluto opposition.
In the original study, we noted that although the opposition had reached its peak in July, its influence continued into the first half of August.
The two Indonesian earthquakes occurred on August 15, precisely at the end of that first-half-of-August window.
The study also examined the transit of Mars into Cancer.
Within the astrometeorological framework, Mars represents pressure, force and activation, while Cancer is traditionally associated with the water element.
Mars was also forming challenging aspects with Venus and Neptune shortly before the Total Solar Eclipse in Leo.
For this reason, our original analysis specifically stated that this configuration:
“draws particular attention to oceanic tectonic plates, island arcs and submarine volcanic systems.”
The M7.7 Flores earthquake subsequently occurred within precisely such an environment: an exceptionally active marine and island-arc tectonic system.
The August 12 Total Solar Eclipse
Another important component of the August astrometeorological picture was the Total Solar Eclipse of August 12 in Leo.
Our original study described this eclipse as one of the most important astronomical and astrological events of the month.
Saturn was also involved in the planetary configuration.
Within traditional astrological symbolism, Saturn is associated with structure, mountains, rock formations and the lithosphere. Its retrograde motion introduces the symbolic theme of compression and accumulated pressure.
At the same time, Pluto is associated in astrometeorological interpretation with deep structures, underground forces and processes developing beneath the Earth's surface, while Jupiter represents expansion and magnification.
These planetary configurations formed the astrometeorological background against which the geographical zones of August were originally assessed.
What This Correspondence Does — and Does Not — Mean
An important distinction must be maintained.
The geographical and temporal correspondence described here does not demonstrate that planetary configurations physically cause earthquakes.
Modern seismology has not established planetary aspects as a mechanism capable of generating earthquakes.
Astrometeorology does not replace seismology, volcanology, geophysics or official scientific monitoring.
This principle was explicitly stated in our original August study, which noted that the analysis should not be interpreted as a scientific earthquake or volcanic eruption prediction tool.
What can legitimately be examined, however, is something different:
the correspondence between a previously published assessment and subsequent events.
The geographical areas were identified before the earthquakes.
The original publication remains publicly available.
The subsequent seismic events can therefore be compared directly with what was written beforehand, without retrospectively changing the geographical assessment.
And in this particular case, the correspondence is clear.
Indonesia.
Pacific Ring of Fire.
Lesser Sunda Islands.
Sumatra.
All were present in the original analysis before the events of August 15.
Two Previously Highlighted Regions, Two Major Earthquakes
This is the central point of the present verification.
The original study did not merely identify Indonesia as a large tectonically active country.
It went further.
It specifically identified:
Sumatra
Java
Sulawesi
Lesser Sunda Islands
as areas of considerable geological interest.
Two days after the English article was published, two of those specifically named geographical regions experienced powerful earthquakes.
The first occurred at Flores, within the Lesser Sunda Islands.
The second occurred in Sumatra.
This does not transform astrometeorology into a method of scientific earthquake prediction.
It does, however, provide a documented case in which a previously published geographical assessment can be compared directly with subsequent geophysical events.
That is precisely why such cases deserve to be recorded and studied rather than reconstructed retrospectively.
August Is Not Over Yet
There is another important element of the original study that remains unresolved.
Our August analysis identified the period surrounding the Total Solar Eclipse as the principal window of the month, while noting that the final part of August could become considerably more unpredictable as the Partial Lunar Eclipse approaches and Uranus becomes strongly involved in the planetary configuration.
The Partial Lunar Eclipse of August 28 therefore remains part of an open assessment.
No conclusion can yet be drawn regarding this final period.
It must be allowed to unfold before actual seismic, volcanic and other geophysical data can be compared with the original analysis.
The same methodological rule applies here as it does to the Indonesian earthquakes:
first the assessment is published, then the events are observed, and only afterwards can the correspondence be evaluated.
For now, Indonesia provides an important case for our August 2026 astrometeorological research.
Two powerful earthquakes.
Two geographical regions specifically identified beforehand.
And a previous publication that allows the original assessment to be examined exactly as it was written before the events occurred.
Hopefully, despite the heightened geophysical activity already observed this month, the remainder of August will prove considerably quieter.
Read the original study published before the Indonesian earthquakes:
Astrometeorology and Tectonic Shifts — August 2026
By Alinda Kanaki
