Krakatoa
E21747
Krakatoa is a volcanic island in the Sunda Strait famous for its catastrophic 1883 eruption, one of the most powerful and destructive volcanic events in recorded history.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Krakatoa canonical | 7 |
| Anak Krakatau | 4 |
| Krakatau volcano | 3 |
| Krakatau | 2 |
| 1883 Krakatoa eruption | 1 |
| 1883 eruption of Krakatoa | 1 |
| Krakatau monument (related heritage context) | 1 |
| Krakatoa island | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T174232 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Krakatoa Context triple: [Indonesia, hasVolcano, Krakatoa]
-
A.
Mount St. Helens
Mount St. Helens is an active stratovolcano in Washington State, USA, best known for its catastrophic 1980 eruption that dramatically reshaped its summit and surrounding landscape.
-
B.
Volcano Islands
The Volcano Islands are a small Japanese archipelago in the western Pacific Ocean, best known for including Iwo Jima, the site of a major World War II battle.
-
C.
Newberry Volcano
Newberry Volcano is a large shield-shaped volcanic complex in central Oregon known for its expansive caldera, numerous lava flows and cinder cones, and active geothermal features.
-
D.
Kīlauea
Kīlauea is one of the world’s most active shield volcanoes, located on Hawaii’s Big Island and renowned for its frequent eruptions and lava flows.
-
E.
Medicine Lake Volcano
Medicine Lake Volcano is a large, shield-shaped volcano in northeastern California known for its extensive lava flows and location within the Cascade Volcanic Arc.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Krakatoa Target entity description: Krakatoa is a volcanic island in the Sunda Strait famous for its catastrophic 1883 eruption, one of the most powerful and destructive volcanic events in recorded history.
-
A.
Mount St. Helens
Mount St. Helens is an active stratovolcano in Washington State, USA, best known for its catastrophic 1980 eruption that dramatically reshaped its summit and surrounding landscape.
-
B.
Volcano Islands
The Volcano Islands are a small Japanese archipelago in the western Pacific Ocean, best known for including Iwo Jima, the site of a major World War II battle.
-
C.
Newberry Volcano
Newberry Volcano is a large shield-shaped volcanic complex in central Oregon known for its expansive caldera, numerous lava flows and cinder cones, and active geothermal features.
-
D.
Kīlauea
Kīlauea is one of the world’s most active shield volcanoes, located on Hawaii’s Big Island and renowned for its frequent eruptions and lava flows.
-
E.
Medicine Lake Volcano
Medicine Lake Volcano is a large, shield-shaped volcano in northeastern California known for its extensive lava flows and location within the Cascade Volcanic Arc.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
stratovolcano
ⓘ
volcanic eruption ⓘ volcanic island ⓘ volcanic island ⓘ |
| alsoKnownAs |
Krakatoa
ⓘ
surface form:
Krakatau
|
| ashColumnHeightApproximate | up to 50 km ⓘ |
| casualtiesApproximate | 36000 ⓘ |
| country | Indonesia ⓘ |
| destroyedMostOf |
Krakatoa
self-linksurface differs
ⓘ
surface form:
Krakatoa island
|
| emerged | 1927 ⓘ |
| endDate | 1883-08-27 ⓘ |
| eruptionProducts |
andesitic magma
ⓘ
dacitic magma ⓘ |
| eruptionType |
Plinian eruption
ⓘ
phreatomagmatic eruption ⓘ |
| globalTemperatureDecreaseApproximate | 0.5 °C ⓘ |
| hazardType |
ash fall
ⓘ
pyroclastic flows ⓘ tsunamis ⓘ |
| impact |
global climatic effects
ⓘ
tsunamis in Sunda Strait ⓘ widespread destruction of coastal settlements ⓘ |
| knownFor | catastrophic 1883 eruption ⓘ |
| lastPre-1883EruptionCentury | 17th century ⓘ |
| locatedBetween |
Java
ⓘ
Sumatra ⓘ |
| locatedIn | Sunda Strait ⓘ |
| location |
Krakatoa
self-linksurface differs
ⓘ
caldera of Krakatoa ⓘ |
| meaningOfName | Child of Krakatoa ⓘ |
| mountainRange |
Sunda Plate
ⓘ
surface form:
Sunda Arc
|
| nameLanguage | Indonesian ⓘ |
| nearbyIsland |
Java
ⓘ
Sumatra ⓘ |
| notableEruption |
Krakatoa
self-linksurface differs
ⓘ
surface form:
1883 eruption of Krakatoa
|
| ocean | Indian Ocean ⓘ |
| overridingPlate | Eurasian Plate ⓘ |
| partOf |
Lampung
ⓘ
surface form:
Lampung province (administrative region for surrounding area)
Pacific Ring of Fire ⓘ |
| post1883VolcanicRemnant |
Krakatoa
self-linksurface differs
ⓘ
surface form:
Anak Krakatau
|
| pressureWaveCircledEarthTimes | 3 ⓘ |
| soundHeardDistanceApproximate | 3000 miles ⓘ |
| startDate | 1883-08-26 ⓘ |
| subductingPlate | Indo-Australian Plate ⓘ |
| tectonicSetting | subduction zone ⓘ |
| tsunamiGenerated | true ⓘ |
| VEI | 6 ⓘ |
| volcanicExplosivityIndexCategory | colossal ⓘ |
| volcanoType | caldera complex ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Krakatoa Description of subject: Krakatoa is a volcanic island in the Sunda Strait famous for its catastrophic 1883 eruption, one of the most powerful and destructive volcanic events in recorded history.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
1883 eruption of Krakatoa
subject surface form:
1883 eruption of Krakatoa
subject surface form:
1883 eruption of Krakatoa
this entity surface form:
Krakatoa island
this entity surface form:
Krakatau
this entity surface form:
Anak Krakatau
this entity surface form:
Anak Krakatau
this entity surface form:
Krakatau volcano
this entity surface form:
Krakatau volcano
this entity surface form:
Krakatau volcano
this entity surface form:
Anak Krakatau
this entity surface form:
1883 Krakatoa eruption
this entity surface form:
Krakatau monument (related heritage context)