Blanke (2018) reports rebuilding evidence for the 749 earthquake in Southwest Hill (Late Antique Jerash Project)
The partial excavation of two residential structures (Trenches 7 and 9) confirmed that Jarash’s southwest district saw a major refurbishment after the earthquake in A.D. 749. Large quantities of ceramics dating to the Abbasid period were retrieved from Trench 7. The excavation of Trench 9 exposed a section of a room that went out of use after a devastating conflagration. The room comprised a stamped clay floor, stone walls, and a flat roof made from wooden beams that supported a thick layer of packed clay. The fire caused the beams to burn and the roof to collapse, thus sealing all material relating to the final use of the room. This material included thousands of carbonized lentils, wheat, barley, and a few figs and dates. The lentils were found in a large pile on top of a stone platform, which implies that they were kept in a sack that disintegrated in the fire. The grain and fruit were found in and around a ceramic vessel that was crushed by the weight of the collapsed roof. This bowl, along with a severely damaged oil lamp, is clearly Abbasid in date. Further analysis and dating of the carbonized material are currently underway.
The excavation of Trench 1 in 2015 uncovered a section of a room within a housing complex that collapsed in a sudden catastrophic event - possibly an earthquake - which sealed the room below 1.5m of wall tumble (the room forms a part of Area D, see Blanke et al. 2015: 232; 2021). The ceramic assemblage uncovered from the room was mainly Late Antique (including Umayyad) and Abbasid in date (Pappalardo 2019). Importantly, the architectural stratigraphy of the building revealed that it was constructed directly on bedrock, with only few architectural modifications identified. Our current interpretation of the room is that it was either built from new or massively restored after the earthquake in the middle of the 8th century AD.
Trench 7 is located within the cluster of residential structures defined as Area F (see below). Following the results of the excavation of Trench 1 (Blanke 2016; Blanke et al. 2021) the aim was to further examine the extent of southwest district as well as investigate the area’s development over the longue durée. The trench was laid out according to two walls that were visible on the surface and constituted the western and southern limits of a 4×4m trench. The excavation revealed several occupational sequences and displays the different construction techniques applied in this area through different periods.
The earliest use of the area (defined here as Phase 1) saw remains of a Roman period occupation (Fig. 8). Given the small space available, the excavation was stopped in Trench 7 before reaching the bedrock. At present, a stone bench is the earliest occupation identified within the excavation, but it was probably not the first construction in the area. The top of the bench was uncovered ca. 2m below the current surface level. Partly obscured by the construction of later walls, the eastern face was made from stone blocks showing no regular layout, bonded with medium stones and fixed with white lime mortar. At first glance, it could be interpreted as a foundation but unfortunately, comparanda with other Roman period underground construction techniques are scarce within Jarash (but see Gawlikowski 1986, plate IIIB; Blanke 2015). The layout of the bench suggests that it served as foundation for a building of substantial size. It is associated with a collapse layer of large ashlar blocks and the same white lime mortar that is found within the bench. It is not possible to speculate on the use of the building, but a careful ceramic analysis dates its destruction to the Roman period (see ceramic analysis, this report). It is also associated with a thick sealing deposit (0.30m) on top of the collapse, which consist of light brown soil with inclusions of glass, bones, metal, tesserae and chunks of marble. The remains of the structure add to the list of several Roman period discoveries made by the LAJP in 2015 and 2017 (see Trench 5, 6 and 8, this report, and Blanke et al. 2021).
Four phases ranging from the Roman to the Abbasid period were identified in the excavation of Trench 7. As described above, the interpretation of Phase 1 is meagre, but added to the numerous discoveries made by LAJP (Blanke 2018a and this article) one can begin to assert the extent and general use of the area in the Roman period. During Late Antiquity, this area seems to have been disused as demonstrated by the hiatus in occupation until the construction of the foundation trench prior to the reuse of the Roman building remains in the Umayyad period. Even if it is not currently possible to understand how the building was used, the continuous use of the north-south wall suggests that the Roman-period structure remained an maintained the memory of the antique building, which was probably already in ruins.
Rattenborg and Blanke (2017:19-21) report arcaheoseismic evidence as follows:
On the southwest hill, excavations conducted by the Late Antique Jarash Project (LAW) exposed a storeroom located in the southern part of a residential building and opening onto a courtyard. The stone-built walls were placed directly on bedrock with a floor comprised by hard-packed yellow clay. The installation of piers along the north and south walls as well as the recovery of arch-stones shows that the roof was vaulted and covered in the same yellow clay that was also used for the walls. The building collapsed in a single violent event — an earthquake — causing the structure to be abandoned.Rattenborg and Blanke (2017:29) noted that
A deposit associated with the final use of the building and sealed by collapse, contained ceramic vessels associated with cooking and the storage of food. The ceramic assemblage comprised roughly 1,000 sherds amounting to 22 nearly intact vessels with only a few sherds from other pots. Of the 22 vessels, nine were larger pithoi-style storage containers, while the remaining 13 comprised smaller storage jars, cooking pots and a few examples of fine wares (Pappalardo forthcoming). Several vessels can confidently be dated to the Abbasid period. Most striking are sherds from three vessels that were produced in a hard black fabric with a polished surface, which are comparable to sherds found in Abbasid layers near the congregational mosque in the centre of town. A black beaker is distinctively Abbasid in its form and is comparable in shape to vessels found in e.g. Pella and Jerusalem and dating to the late 8th or 9th centuries. The fabric matches a rare ceramic specimen from Nabratein of the same early Abbasid date (Magness 1994).
the available archaeological record of the 9th-11th centuries is notoriously meagre and marred by a dissatisfying degree of chronological control.
Effect | Location | Image(s) | Description |
---|---|---|---|
|
Storeroom located in the southern part of Area D residential building opening onto a courtyard - Trench 1
Figure 5
Detail of hilltop in southwest district showing location of Trenches 1-4. © LAJP Blanke et al (2021)
Figure 2
Architectural remains on hilltop showing Areas A-E © Louise Blanke and IJP (Islamic Jerash Project) Blanke et al (2015) |
Figure 7
Remains of two ceramic pithoi embedded into the construction of the floor. © LAJP Blanke et al (2021) |
|
Effect | Location | Image(s) | Description | Intensity |
---|---|---|---|---|
|
Storeroom located in the southern part of Area D residential building opening onto a courtyard - Trench 1
Figure 5
Detail of hilltop in southwest district showing location of Trenches 1-4. © LAJP Blanke et al (2021)
Figure 2
Architectural remains on hilltop showing Areas A-E © Louise Blanke and IJP (Islamic Jerash Project) Blanke et al (2015) |
Figure 7
Remains of two ceramic pithoi embedded into the construction of the floor. © LAJP Blanke et al (2021) |
|
|
Blanke, L et al. (2015) The 2011 season of The Late antique Jarash Project: results from the survey southwest of the Umayyad congregationaL mosque
ADAJ 57
Blanke, L. (2018). The Late Antique Jarash Project. In (eds.) h, 31-32. Archaeology in Jordan Newsletter: 2016 and 2017 seasons. B. A. P. a. C. B. S. John D.M. Green, The American Center of Oriental Researc: 31-32.
Blanke, L. (2018) Abbasid Jerash reconsidered: suburban life in southwest Jerash over the longue durée.
In Achim Lichtenberger and Rubina Raja (eds.) 110 years of excavation in Jerash, Jordan. Turnhout: Brepols Publishers
Blanke, L., et al. (2021). "Excavation and magnetic prospection in Jarash’s southwest district: The 2015 and 2016 seasons of the Late Antique Jarash Project." Annual of the Department of Antiquities of Jordan 60.
Blanke, L. and A. Walmsley (2022). Resilient cities: Renewal after disaster in three late antique towns of the East Mediterranean. Remembering and Forgetting the Ancient City, Oxbow Books: 69-109.
Blanke, L., et al. (2024). A Millenium of Unbroken Habitation in Jarash's Southwest District: The 2017 season of the Late Antique Jarash Project.
ADAJ 61: 95-135.
Pappalardo, R. (2019) Life after the earthquake: an early Abbasid domestic assemblage from Jerash ICHAJ Florence, Italy 20 Jan. 2019
Rattenborg, R. and L. Blanke (2017). "Jarash in the Islamic Ages (c. 700–1200 CE): a critical review." Levant 49(3): 312-332.