The 1630 Crete earthquake reportedly occurred at around 09:00 on 9 March 1630 in the Kythira Strait, off the coast of Crete. Until the mid-1990s, the earthquake had traditionally been referred to as the 1629 Crete earthquake, which had been documented to have occurred at about 10:00 on Saturday 27 February 1629. [1] Extensive research by several experts on the subject since the late 1980s has revealed that a calculation error mis-dated the occurrence by several days and a year.
The exact epicentre of the earthquake is unknown, [2] although it has been cited to have been in the Kythira Strait. [3] [4] The Venetians, who ruled Crete at the time, recorded it as a major earthquake, and it has been cited as one of three major earthquakes to have taken place in the Antikythira seismic gap, the others occurring in 1750 and 1798. [5]
Greek seismological reports indicated that the earthquake occurred on 27 February 1629, resulting in extensive losses to property in much of Crete, and also causing a few deaths in Heraklion, where houses fell down, trapping people. [3] [6] Churches experienced significant damage. In 1893, De Viazis unearthed a series of official documents of the Venetian Administration of Zakynthos revealing that three captains sailing independently in the strait at the time of the earthquake had reported their observations, which was in the form of tsunami waves travelling in the direction of south and southeast posing threats to their ships. Two reported the "remnants of wrecks and bodies of shipwrecked persons" and ships being affected by a tsunami. Another captain who had landed on the coast of Kythira stated that the people on the island had also experienced earthquake shocks at the same time as the captains had experienced it in the sea, and that it had resulted in some degree of flooding near the pier of the harbour. [3] [6]
In 1988, K. G. Tsiknakis published in the Cretica Chronica two previously unpublished accounts of the earthquake. [6] In 1994, after conducting further research, Tsiknakis stated that he believed the previously established year of the earthquake was wrong, and it was in fact 1630. In 1997 and 2003, Papazachos and Papazachou stated that they believed the date was 10 March 1630, which has since been moved back a day. [3] In 2010, Papadopoulos and others reported that tsunamis had been recorded when strong earthquakes struck the area between the Peloponnese and Crete, not only on 9 March 1630 but also on 6 February 1866, and 20 September 1867. [7]
A tsunami is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and underwater explosions above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event.
The seismicity of the Sanriku coast identifies and describes the seismic activity of an area of Japan. Seismicity refers to the frequency, type and size of earthquakes experienced over a period of time. The Sanriku Coast is a descriptive term referring to the coastal areas of the former provinces of Rikuō in Aomori, Rikuchū in Aomori, and Rikuzen in Miyagi.
The 2006 Greece earthquake – also known as the Kythira earthquake – occurred on January 8 at 13:34:53 local time and was felt throughout the entire eastern Mediterranean basin. The earthquake an Mw magnitude 6.7 and a maximum Mercalli intensity of VII. Its epicentre was located just off the island of Kythira about 200 kilometres (120 mi) south of Athens.
An earthquake occurred on July 17, 2006, at 15:19:27 local time along a subduction zone off the coast of west and central Java, a large and densely populated island in the Indonesian archipelago. The shock had a moment magnitude of 7.7 and a maximum perceived intensity of IV (Light) in Jakarta, the capital and largest city of Indonesia. There were no direct effects of the earthquake's shaking due to its low intensity, and the large loss of life from the event was due to the resulting tsunami, which inundated a 300 km (190 mi) portion of the Java coast that had been unaffected by the earlier 2004 Indian Ocean earthquake and tsunami that was off the coast of Sumatra. The July 2006 earthquake was also centered in the Indian Ocean, 180 kilometers (110 mi) from the coast of Java, and had a duration of more than three minutes.
The 1938 Banda Sea earthquake occurred on February 2 at 04:04 local time with an estimated magnitude of 8.5-8.6 on the moment magnitude scale. Shaking was intense with an assigned Rossi–Forel intensity of VII and intensity of VI (Strong) on the Modified Mercalli intensity scale. This oblique-slip event generated a destructive tsunami of up to 1.5 metres in the Banda Sea region, but there were no deaths.
The 1999 Athens earthquake occurred on September 7 at 14:56:51 local time near Mount Parnitha in Greece with a moment magnitude of 6.0 and a maximum Mercalli intensity of IX (Violent). The proximity to the Athens metropolitan area resulted in widespread structural damage, mainly to the nearby suburban towns of Ano Liosia, Acharnes, Fyli, Thrakomakedones, Kifissia, Metamorfosi, Kamatero and Nea Filadelfeia. More than 100 buildings across those areas collapsed trapping scores of victims under their rubble while dozens more were severely damaged. With damage estimated at $3–4.2 billion, 143 people were killed, and up to 1,600 were treated for injuries in Greece's deadliest natural disaster in almost half a century.
The 365 Crete earthquake occurred at about sunrise on 21 July 365 in the Eastern Mediterranean, with an assumed epicentre near Crete. Geologists today estimate the undersea earthquake to have been a moment magnitude 8.5 or higher. It caused widespread destruction in the central and southern Diocese of Macedonia, Africa Proconsularis, Egypt, Cyprus, Sicily, and Hispania (Spain). On Crete, nearly all towns were destroyed.
The 426 BC Malian Gulf tsunami devastated the coasts of the Malian and Euboean Gulfs, Greece, in the summer of 426 BC. Thucydides inquired into its causes, and concluded that the tsunami must have been caused by an earthquake. He was thus historically the first known to correctly interpret the cause of a tsunami as a preceding geological event. Herodotus, in contrast, had attributed the Potidaea tsunami to the divine wrath of Poseidon.
A teletsunami is a tsunami that originates from a distant source, defined as more than 1,000 km (620 mi) away or three hours' travel from the area of interest, sometimes travelling across an ocean. All teletsunamis have been generated by major earthquakes such as the 1755 Lisbon earthquake, 1960 Valdivia earthquake, 1964 Alaska earthquake, 2004 Indian Ocean earthquake, 2011 Tohoku earthquake, and the 2021 South Sandwich Islands earthquakes.
The 1481 Rhodes earthquake occurred at 3:00 in the morning on 3 May. It triggered a small tsunami, which caused local flooding. There were an estimated 30,000 fatalities. It was the largest of a series of earthquakes that affected Rhodes, starting on 15 March 1481, continuing until January 1482.
The 1303 Crete earthquake occurred at about dawn on 8 August. It had an estimated magnitude of about 8, a maximum intensity of IX (Violent) on the Mercalli intensity scale, and triggered a major tsunami that caused severe damage and loss of life on Crete and at Alexandria. It badly damaged the Lighthouse of Alexandria.
The 1810 Crete earthquake occurred at 22:15 on 16 February. It caused great destruction in Heraklion and some damage from Malta to northern Egypt, and was felt from central Italy to Syria. 300 fatalities were reported from Candia (Heraklion).
On 30 September 1899 the island of Ceram, Dutch East Indies, was struck by an Ms 7.8 earthquake which was accompanied by a 10-meter landslide-induced tsunami. According to the Batavian Magnetic and Meteorological Observatory, the shock occurred at 01:42 AM Amahei local time. The study about the quake and its effects was published by Dr. R. D. M. Verbeek in an article named Short Report about the earth- and sea-quake in Ceram, the 30th September 1899, which serves as the only extensive source on this earthquake.
Kythira Strait is a waterway off Kythira in Southern Greece. The Kythira–Antikythira Strait is situated within the Western Hellenic arc. It measures approximately 100 kilometres (62 mi) in length and is situated between the Peloponnese and the island of Crete.
The 1886 Peloponnese earthquake occurred at 23:27 local time on 27 August. It had an estimated magnitude between 6.8 and 7.3 on the moment magnitude scale and a maximum felt intensity of X (Extreme) on the Mercalli intensity scale. It caused extensive damage in Messenia, with the towns of Filiatra and Marathos both severely affected. Between 326 and 600 people were killed. It was felt over a wide area from the Khedivate of Egypt to Malta and possibly as far away as Bern and Marseille.
The 1856 Heraklion earthquake, also known as the Crete earthquake or Rhodes earthquake, occurred on the morning of October 12 at 02:45 am local time. This extremely catastrophic earthquake had an estimated magnitude of 7.7 to 8.3 at a depth of approximately 61 to 100 km. The earthquake was felt over a very wide area extending from Sicily, Italy to the Levant and North Africa. On the Greek island of Crete, the effects of the earthquake were cataclysmic, over 500 bodies were recovered in the city of Heraklion. Shockwaves from the earthquake were felt intensely, covering all of the Ottoman Empire; present-day Turkey, Cyprus and the Middle East where damage and human losses were reported. In Malta, the Għajn Ħadid Tower—a coastal watchtower built around the year 1638—was severely damaged in the earthquake, when its upper floor collapsed. In Cairo, Egypt, the earthquake destroyed buildings, created seiches in canals, and killed several people. Off the Egyptian and Italian coasts, sailors reported feeling a seaquake.
The 1761 Lisbon earthquake and its subsequent tsunami occurred in the north Atlantic Ocean and south of the Iberian Peninsula. This violent shock which struck just after noon on 31 March 1761, was felt across many parts of Western Europe and in Morocco. Its direct effects were observed even far north in Scotland and Amsterdam, and to the south in the Canary Islands of Spain. The estimated surface-wave magnitude 8.5 event was the largest in the region, and the most significant earthquake in Europe since the Great Lisbon earthquake of 1755.
The 1743 Salento earthquake affected the Apulian region of southwestern Italy on 20 February at 23:30 IST. The ~7.1 Mw earthquake had an epicenter in the Adriatic and Ionian seas, off the coast of modern-day Lecce and Brindisi provinces in Salento. It had a maximum Modified Mercalli intensity of IX (Violent), causing heavy damage in Nardò. Damage was also reported across the sea, in the Balkans. The earthquake also generated a tsunami of up to 11 meters in run-up. Between 180 and 300 people were killed in the disaster.