Il-Maqluba is a deep, wooded depression beside St Matthew’s chapels at Qrendi, Malta. Local tradition makes it the remnant of a community destroyed for its wrongdoing. Geological research identifies a bedrock-collapse sinkhole: a conspicuous example of the way cavities and collapse can reshape a limestone landscape. The physical feature and the story attached to it can both be documented, but they require different kinds of evidence.
The case is classified as explained for the origin of the landform. That assessment does not certify the traditional medieval date, an earthquake on a particular night, or a supernatural punishment. A modern scientific description establishes the type of structure; it is not an eyewitness account of its formation. Keeping those questions separate avoids making either the geology or the legend carry more weight than its sources support.
The Qrendi tradition
Qrendi Local Council recounts a hamlet whose inhabitants behaved badly. When the ground collapsed, a devout woman escaped because she was praying in a chapel. The small surviving sanctuary stands beside the hollow. This is presented as a traditional narrative, not a contemporary list of casualties or an archaeological demonstration that a village vanished.
The council associates the disaster with a storm on 24 November 1343 and also discusses earthquake and underground-collapse explanations. The 2024 geological paper repeats the historical attribution to that date, citing earlier research. Repetition in a scientific introduction does not turn the date into a direct measurement of the collapse. Our incident-year filter therefore remains unassigned: 1343 is retained visibly as a traditional attribution, rather than entered as an independently established event year.
What the geological study examined
Martina Possenelli, Ritienne Gauci, Stefano Devoto, Lidia Selmi, Paola Coratza and Vittoria Vandelli included Il-Maqluba in their 2024 inventory of southern Malta’s geosites. Their work considered two study areas, bringing together published geology, maps, satellite imagery, expert interviews and field surveys. They assembled descriptive records before scoring the sites for scientific importance, additional cultural and aesthetic value, and potential use.
The inventory identified eighteen potential geosites and selected four priorities. Il-Maqluba was one of those four, alongside the Blue Grotto karstic system, St Peter’s Pool and the Darmanin Salt Pans. These are the four places in the reproduced Figure 8. Only panel A shows the sinkhole; the other panels illustrate the comparative geological and cultural landscape considered by the researchers.
The paper describes Il-Maqluba as a roughly circular depression with a major diameter of about 104 metres. Its landform classification is bedrock collapse, within a karst landscape. This is more specific than calling it a mysterious crater. A crater-like outline alone does not establish an impact, an explosion or a supernatural event. Here the interpretation rests on the limestone setting and the geological character of the depression.
From cavity to collapse
Malta’s limestone landscapes include caves, arches, gorges and sinkholes. In the study’s southwestern area, karst features occur within a wider setting shaped by geological structure, erosion and the Magħlaq Fault. Il-Maqluba is inland, while the Blue Grotto provides a nearby coastal example of a different combination of processes. Their inclusion in the same inventory does not mean they formed together or through an identical event.
The Environment and Resources Authority describes dissolution of limestone followed by cavern collapse. Its protected-site record also distinguishes the depression from conspicuous coastal structures: Il-Maqluba is isolated from the sea. This supports a natural explanation for the hollow. It does not independently identify the final trigger or date when the roof failed.
A distinction between formation process and trigger matters here. Calling the feature a bedrock-collapse sinkhole explains the kind of geological change represented by the exposed hollow. A claim that one named storm caused the final collapse adds a historical proposition requiring its own evidence. Likewise, the religious story gives meaning to a dramatic place, but it cannot substitute for a geological mechanism or a securely dated historical record.
A refuge created by the hollow
The steep walls are central to the modern site’s importance. The 2024 study describes protection for local vegetation and nesting birds, treating ecological support as part of the sinkhole’s scientific value. A depression can therefore matter both as evidence of a destructive landscape process and as a sheltered habitat that develops after that process.
The authority’s record notes former cultivation, surviving rubble walls and established vegetation on the floor. These observations concern the subsequent use and ecology of the hollow. They should not be recast as remnants of the legendary destroyed settlement. The same visible feature can have an agricultural history without providing evidence for every story told about its origin.
What the scores establish
Il-Maqluba received a total score of 16.7 and a global-value score of 9.5 in the study. The authors considered its geological representation, educational usefulness, cultural associations and practical context. These numbers rank its importance within that particular geosite inventory. They are not probabilities that the legend happened, estimates of paranormal activity or measurements of the medieval storm.
The method is useful because it makes the reasons for selecting a site explicit. It also has limits: different criteria and weightings can change a ranking, and the authors discuss adapting established methods to local conditions. The strong result for Il-Maqluba supports its value for geological interpretation and conservation. It supplies no independent test of the woman’s escape or divine intervention.
Map reference and present-day context
Approximate map area: 35.8318, 14.4585, the site-centre coordinate published in the authority’s Natura 2000 record. This marks the protected landscape, not a pinpoint for a lost house, a safe descent or the exact point where collapse began. It is not an access permission or an instruction to enter the sinkhole.
The scientific paper recognises both the site’s tourism setting and its protected status. Qrendi’s council describes an overlook beside the hollow. This article is a historical and geological reference rather than a promise that every path, chapel or lower area is currently open. The image is a research illustration of existing landscapes, not a reconstruction of the attributed medieval disaster.
Assessment and source trail
The geological interpretation is supported by the protected-site description and the field-based geosite study. The traditional date and moral narrative remain separately attributed. The natural origin is explained; the surviving sources reviewed here do not establish supernatural destruction, identify a lost population, or independently fix the collapse to one night.
Read the original 2024 open-access study, Geosciences 14, 292, especially its study-area description and section 4.4.3. The complete paper is also available from the University of Malta repository. Original interpretation and paraphrase here draw on the authors’ CC BY 4.0 publication.
The Environment and Resources Authority’s site record supplies the protected-area reference and coordinates. Qrendi Local Council’s historical-places account records the local legend and traditional date. Source checks: 13 November 2026.