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Eusebius' Martyr Quake

2 April (303 - 306 CE)

by Jefferson Williams









Introduction & Summary

Eusebius' Martyr Quake Summary

Textual Evidence

Text (with hotlink) Original Language Religion Date of Composition Location Composed Notes
Introduction & Summary
Damage and Chronology Reports from Textual Sources
Martyrs of Palestine by Eusebius Greek Christian between 311 and 316 CE Caesarea Describes shaking but no specific damage in Caesarea. Supplies a date of 2 April, Says the earthquake struck in the 3rd year of the Diocletianic Persecutions which equates to ~306 CE.
Chronicon written by Eusebius and Translated by Jerome Latin translation from Greek of the 2nd part of Eusebius' Chronicon Christian ~325 CE for final edition of original composition
ca. 380 CE for Latin translation
Caesarea (final edition of original composition) Described a horrible earthquake at Tyre and Sidon where many edifices were ruined and an immense number of people were crushed. Provides a variety of chronological markers that specify a year between 300 and 305 CE with 303-305 CE the most likely time span.
History Against the Pagans by Orosius Latin Christian ~416-417 CE Palestine and/or Gallaecia (northwest Hispania) and/or places between. Described an earthquake in Syria where thousands of people throughout Tyre and Sidon were crushed by falling buildings. Although, a date is not specified and the year is not explicitly defined, the position of the passage in relation to other events suggests a date range from 303 CE - 1 May 305 CE and a most likely year of 303 CE.
Later Authors
Text (with hotlink) Original Language Religion Date of Composition Location Composed Notes
Introduction & Summary

Textual evidence suggests that the epicenter of this earthquake was near the Lebanese littoral as fallen buildings and deaths are reported in Tyre and Sidon. Strong shaking is also reported in Caesarea suggesting a powerful earthquake. The date of the earthquake is not well defined as a spread of ages from ~300-306 CE can be deduced from the texts with 303 - 306 CE as perhaps the most likely time frame. Eusebius, a contemporaneous author, gives a precise date of 2 April.

Damage and Chronology Reports from Textual Sources

Chronology Table - Years

Date of Composition Work Probable Year Widest possible date range Comments
between 311 and 316 CE Martyrs of Palestine by Eusebius ~306 CE ~306 CE
325 CE Chronicon written by Eusebius and Translated by Jerome 303 - 305 CE late 300 CE - June 305 CE
~416-417 CE History Against the Pagans by Orosius 303 CE ~303 CE - 1 May 305 CE

Chronology Table - Dates

Date of Composition Work Date
between 311 and 316 CE Martyrs of Palestine by Eusebius 2 April

Master Seismic Effects Table

Location Description Sources Comments
Caesarea Strong Shaking Martyrs of Palestine by Eusebius
Caesarea Tsunami ? Martyrs of Palestine by Eusebius Sentence is unclear if a tsunami, strong waves, or a storm surge is described. The sentence could also be embellished, hyperbolic, or fictitious.
Tyre Fallen buildings killed many people History Against the Pagans by Orosius, Chronicon written by Eusebius and Translated by Jerome
Sidon Fallen buildings killed many people History Against the Pagans by Orosius, Chronicon written by Eusebius and Translated by Jerome

Martyrs of Palestine by Eusebius

Chronicon written by Eusebius and Translated by Jerome

History Against the Pagans by Orosius

Later Authors

Archaeoseismic Evidence

Location (with hotlink) Status Intensity Notes
Hippos Sussita unlikely Segal et al (2014b) excavated an Odeion at Hippos-Sussita from 2008 - 2010. They report that
On the basis of an analysis of the building methods and materials and according to the numismatic and pottery finds, it can be determined to a great degree of certainty that the odeion was erected during the second half of the 1st century CE. It appears that the odeion was in use during the first three centuries of the Common Era. Its condition as revealed during its exposure by the excavators clearly indicates that it was not destroyed. This conclusion is based on the preserved uniform height of the walls, two or three courses, not including the encompassing wall of which six courses have survived. The lack of decorative items that were broken or burnt, the absence of tiles and sooty remains of the ceiling and roof, all testify that the structure was systematically dismantled. It is safe to assume, on the basis of the numismatic and pottery finds, that the dismantling of the structure was carried out during the 4th century CE, apparently before the earthquake of 363 CE. However, we cannot negate the possibility that the odeion was damaged during this earthquake and that a decision was then made not to renovate but rather to dismantle it.
In summary, they did not encounter a destruction layer. While it is possible that the Odeion was dismantled due to damage caused by an earlier earthquake, the excavators did not suggest this.
Tiberias - Hammath Tiberias possible Stratum IIB Earthquake (?) - 4th century CE - Magness (2005) reports that in his excavation reports, Moshe Dothan interprets the evidence to indicate that the synagogue of Stratum IIB was destroyed in the Eusebius' Martyr Quake (303-306 CE). Magness (2005) apparently dates the end of Stratum IIB to the 4th century CE and does not ascribe an earthquake to its presumed destruction. Weiss (2009:338) opined that there is no reason to assume that the [Stratum II] Hammath Tiberias synagogue had two distinctly different stages suggesting instead that the Stratum II synagogue underwent several internal changes during its years of existence and that the remodeling of the synagogue that Dothan attributed as a response to the Eusebius' Martyr Quake (303-306 CE) occurred later - some time after the earthquake, most probably in the second half of the fourth century C.E.
es-Sufeira possible Eisenberg and Osband (2022) report that excavators Zingboym and Kleiner (2021) suggest that the Eusebius Martyr Quake (between ~303 and ~306 CE) damaged the site.
Tel Dover possible Eisenberg and Osband (2022) report that Rapuano (2001) identified an early 4th century CE destruction layer which could have been due to the Eusebius Martyr Quake (between ~303 and ~306 CE).
Gush Halav possible
End of Stratum VI Phase a Earthquake - Debated Chronology

Although Meyers, Strange, Meyers, and Hanson (1979) interpret destruction at the end of VIa due to the Eusebius' Martyr Earthquake of ~306 AD, their chronology is debated. Magness (2001a) performed a detailed examination of the stratigraphy presented in the final report of Meyers, Meyers, and Strange (1990) and concluded, based on numismatic and ceramic evidence, that a synagogue was not built on the site until no earlier than the second half of the fifth century. While she agreed that earthquake destruction evidence was present in the excavation, she dated the destruction evidence to some time after abandonment of the site in the 7th or 8th centuries AD. Strange (2001) and Meyers (2001) went on to rebut Magness (2001a) to which Magness (2001b) responded again. One point of agreement however is that earthquake destruction evidence does appear to be present.

Eric M. Meyers in Stern et al (1993) also discussed this earthquake

Although the earthquake of 306 CE apparently did a great deal of damage to the structure, the stylobates were shored up and other repairs undertaken to make the period II building sturdier.

Khirbet Shema possible
1st Earthquake - Debated Chronology

Although excavators Meyers, Kraabel, and Strange (1976) identified two earthquake events ( Eusebius' Martyr Quake of ~306 CE and Monaxius and Plinta Quake of 419 CE) which destroyed a Synagogue I and then a Synagogue II at Khirbet Shema, subsequent authors ( e.g. Russell, 1980 and Magness, 1997) re-examined their chronology and redated the earthquake evidence. Russell (1980) redated the two earthquake events to the northern Cyril Quake of 363 CE and the Monaxius and Plinta Quake of 419 CE while Magness (1997) concluded that there was no solid evidence for the existence of a Synagogue I on the site and evidence for an earthquake event in ~306 CE was lacking. She posited that Synagogue II was constructed in the late 4th to early 5th century CE and concluded that there was no solid evidence for the 419 CE (or 363 CE) earthquake as well. In Magness (1997) interpretation of the evidence, she suggested that the site had been abandoned when an earthquake brought down Synagogue II sometime before the 8th century CE.

Two sealed loci at the site provide a terminus post quem for the construction of Synagogue II. The latest coin found within a Bema was dated to 337-341 AD during the rule of Constans. The bema was described as "absolutely sealed by the stonework of the bema around and over it" where "contamination by later intrusions is virtually impossible" (Meyers, Kraabel, and Strange 1976:34). A declivity in the northwest corner of Synagogue II contained fill which was "sealed beneath more than a meter of debris, including large fallen architectural members" (Meyers, Kraabel, and Strange 1976: 34). Pottery within the fill below was described as homogeneous Middle-Late Roman. At the lowest levels a coin from Gratian (who ruled from 367-383 AD) was discovered. Meyers, Kraabel, and Strange (1976) interpreted the construction above the declivity to be part of a remodel. If we consider that construction above the declivity could also represent original construction, the terminus post quem for the construction of Synagogue II is between 337 and 383 AD. It is conceivable that Synagogue II was constructed over earthquake damaged remains of an earlier structure due to the presence of "battered architectural fragments built into Synagogue II (including those identified as belonging to the "Torah shrine") (Magness, 1997:216) however, as pointed out by Magness (1997) the provenance of these battered elements is unknown. They could come from another building. Nevertheless, this can be considered as possible archeoseismic evidence which predates the construction of Synagogue II. As for the causative earthquake(s), the Eusebius' Martyr Quake of ~306 AD and the Cyril Quake of 363 AD are both possibilities. Two other fills were examined (east and west of the Stylobate wall) but neither were sealed and neither added chronological precision to the construction of Synagogue II.

en-Nabratein possible
End of Phase IIIa Earthquake - Debated Chronology

Meyers, et al. (2009) performed excavations of what they labeled Synagogue 2 at en-Nabratein. They subdivided the life of this structure into two phases of Period III (Late Roman, A.D. 250-350/363)

Period Age Date Phase
I Early Roman 1-ca. 135 CE ‎Period I is pre-synagogue, but it does have structural remains related to those of subsequent periods
II Middle Roman ca. 135 - ca. 250 CE ‎(Synagogue 1)
III Late Roman ca. 250-363 CE
IIIa Late Roman ca. 250-306 CE ‎(Synagogue 2a)
IIIb Late Roman ca. 306-363 CE ‎(Synagogue 2b)
IV Byzantine and Early Arab ca. 564-700 CE (Synagogue 3)‎
Meyers et al (1982) dated Period III phase a using ceramics and some coins and end phase a with the Eusebius' Martyr Quake of ~306 AD which they believed damaged the synagogue and led to rebuilding. The rebuilding effort initiated Period III phase b. The end of Period III phase b is not precisely dated with material remains. Ceramics and "an irregular supply of coins dating up to ca. 350 A.D." provide the earliest possible date for the end of Period III phase b. The authors state that the end of Period III phase b "is perhaps to be understood as a combination of factors, mainly the revolt against Caesar Gallus (A.D. 350-52), general economic hardships, and the great earthquake of A.D. 363". By the 7th decade of the 4th century AD, the authors consider the site to have been virtually abandoned until a third synagogue was established towards the end of the Byzantine era in A.D. 564; according to an inscription.

Magness (2010) examined the reports of Meyers, Strange, and Meyers (1982) paying attention to stratigraphic levels and chronological information and concluded that the first (and only) Synagogue built on the site occurred "no earlier than the second half of the fourth century, and point to occupation and activity precisely during the centuries when the excavators claim the site was abandoned." A coin of 341-346 from the east wall and pottery suggests a terminus post quem of the second half of the 4th century for the synagogue's construction. Other evidence leads to a terminus ante quem of the second half of the 5th century or later (mid 6th century). There is also the inscription which states that the synagogue was built or remodeled in 564 AD (Magness, 2010). Meyers and Meyers (2010) rebutted Magness (2010) analysis of the stratigraphy and chronology discussing intricate details of sloping bedrock, lensed stratigraphy, later disturbance of the site, the coin of 341-346 not being in the wall but in earthen fill, etc. etc.

Byblos possible Ambraseys (2009) discussed an inscription found in Byblos which may allude to the Eusebius Martyr Quake
There is also an inscription from an altar in Byblus that records the survival of one Apollodorus after an earthquake Dussaud (1896:299). The inscription is dated by Seyrig to the second or third century, which would seem to indicate that it is not connected with this earthquake (H. Seyrig, personal communication 5 July 1972). However, since provincial epigraphy is often slower to change than that in major centres, and there is no other earthquake recorded for this location during the second or third century, the inscription has been very tentatively allocated to this event.
Location (with hotlink) Status Intensity Notes
Hippos Sussita



Hammath Tiberias - Synagogue



es-Sufeira



Tel Dover



Gush Halav



Khirbet Shema



en-Nabratein



Byblos



Tsunamogenic Evidence

Location (with hotlink) Status Intensity Notes
Caesarea and Jisr al-Zakra possible Neither Reinhardt et. al. (2006) nor Goodman-Tchernov et. al. (2009) nor Goodman-Tchernov and Austin (2015) saw evidence of a tsunami in near shore shelf deposits of Caesarea around 304 CE. Salamon et. al. (2011) noted that a tsunami was reported in a number of earlier earthquake catalogs (e.g. Shalem, 1956, Ben-Menahem, 1991, Amiran et al., 1994) which several of the cataloguers (Shalem, 1956 and Amiran et al., 1994) viewed as doubtful - according to Salamon et al (2011). The alleged tsunami was likely generated from Eusebius' report of the sea casting up the body of the martyrdom of Apphian at the gates of Caesarea at the same time as the [Eusebius Martyr Quake] in Sidon. Salamon et al (2011) noted that a seismic sea wave is not specifically mentioned in Eusebius' text and it is common along the eastern Mediterranean coast, even in normal weather conditions, that the sea casts up dead bodies of drowned people at the shore.
Location (with hotlink) Status Intensity Notes
Caesarea and Jisr al-Zakra



Paleoseismic Evidence

Location (with hotlink) Status Intensity Notes
Tabarja Benches possible Mw = ~7.5 Elias et al (2007) examined uplifted benches on the Lebanese coast between Sarafand and Tripolis; some in the vicinity of Tabarja (~20 km. NE of Beirut). They identified four uplifts from 3 or more [sizeable Mw = ~7.5] earthquakes in the past ca. 6-7 ka. They attributed the latest uplift (B1) to the 551 CE Beirut Quake while the earlier events (B2, B3, and B4) were no more precisely dated than between ~5000 BCE and 551 CE. Bench uplift on the earlier events (B2, B3, and B4) would likely have been due to uplift on the Mount Lebanon Thrust system - as was surmised for Event B1 and the 551 CE Beirut Quake.
al-Harif Syria possible ≥ 7
Sbeinati et. al. (2010) report a seismic event X which they dated to 335 CE± 175 years. MW = 7.3-7.6 (based on 4.2 m of slip).
Bet Zayda probable ≥ 7 The Eusebius Martyr Quake of 303-306? CE is a good fit for Event CH4-E3 (Modeled Ages 250-310 CE) particularly as it relates to other events observed. (Wechsler at al., 2014)
Dead Sea unlikely n/a Mistaken report - Although Wechsler et al. (2018:18) reported that ~303 CE shaking was found in the Dead Sea sediment cores (Kagan et. al., 2011; Migowski et. al., 2004 ), Kagan et. al. (2011) did not assign an event of 300-307 CE to any seismites in En Feshka or Nahal Ze 'elim and Migowski et. al. (2004) did not assign an event between 300 and 307 CE in En Gedi. A simple check on whether a ~303 CE seismite would have been masked or overprinted by the Monaxius and Plinta seismite of 419 CE reveals that this is not a possibility consistent with how this was reported by Migowski et. al. (2004:Table 2). So, there is no Dead Sea Paleoseismic evidence for this earthquake. Considering the distance to the presumed epicenter near the Lebanese littoral, it is unlikely that such an earthquake would have formed seismites in the Dead Sea.
Location (with hotlink) Status Intensity Notes
Tabarja Benches

Elias et al (2007) examined uplifted benches on the Lebanese coast between Sarafand and Tripolis; some in the vicinity of Tabarja (~20 km. NE of Beirut). They identified four uplifts from 3 or more [sizeable Mw = ~7.5] earthquakes in the past ca. 6-7 ka. They attributed the latest uplift (B1) to the 551 CE Beirut Quake while the earlier events (B2, B3, and B4) were no more precisely dated than between ~5000 BCE and 551 CE. Bench uplift on the earlier events (B2, B3, and B4) would likely have been due to uplift on the Mount Lebanon Thrust system - as was surmised for Event B1 and the 551 CE Beirut Quake.



Displaced Aqueduct at al Harif, Syria

Sbeinati et. al. (2010) report a seismic event X which they dated to 335 CE± 175 years. MW = 7.3-7.6 (based on 4.2 m of slip).



Bet Zayda (aka Beteiha)

The Eusebius Martyr Quake of 303-306? CE is a good fit for Event CH4-E3 (Modeled Ages 250-310 CE) particularly as it relates to other events observed. (Wechsler at al., 2014)



Dead Sea - Mistaken Report

Although Wechsler et al. (2018:18) reported that ~303 CE shaking was found in the Dead Sea sediment cores (Kagan et. al., 2011; Migowski et. al., 2004 ), Kagan et. al. (2011) did not assign an event of 300-307 CE to any seismites in En Feshka or Nahal Ze 'elim and Migowski et. al. (2004) did not assign an event between 300 and 307 CE in En Gedi. A simple check on whether a ~303 CE seismite would have been masked or overprinted by the Monaxius and Plinta seismite of 419 CE reveals that this is not a possibility consistent with how this was reported by Migowski et. al. (2004:Table 2). So, there is no Dead Sea Paleoseismic evidence for this earthquake. Considering the distance to the presumed epicenter near the Lebanese littoral, it is unlikely that such an earthquake would have formed seismites in the Dead Sea.

Migowski et. al. (2004) report the 419 CE seismite at a depth of 2.3716 m with a thickness of 0.5 cm. They report the ~175 CE seimite at a depth of 2.5562 m. A simple calculation reveals that in this part of the core, 1 cm. of sediment represents ~13 years of time. As 304 CE is 115 years earlier than 419 CE, it should be almost 9 cm deeper and thus ~8.5 cm. below the bottom of the 0.5 cm. thick 419 CE seismite. It should not have been masked or overprinted.

En Feshka



En Gedi



Nahal Ze'elim



Notes

Paleoclimate - Droughts

References