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60 free Mediterranean Sea trivia questions with answers — geography quiz, new questions added Aug 2026.
The Mediterranean is a small sea with an enormous story. It covers less than 1% of the world's ocean surface, yet it saw the rise of Egypt, Minoan Crete, Phoenicia, Greece and Rome, and it is the only sea whose entire coastline was ever ruled by one state. This quiz starts with the geography a beginner can manage: the 14 km strait that joins it to the Atlantic, the canal that joins it to the Red Sea, its two largest islands and its 21 coastal countries. Then it digs deeper into the Messinian salinity crisis that dried the sea out and the Zanclean flood that refilled it, the Calypso Deep, the salty two-layer flow through Gibraltar and the 100-year residence time that makes it a climate bellwether. History gets its share too: Darius's canal, Mare Nostrum, the Barbary pirates and the million Europeans they enslaved, Lepanto, Nelson at Aboukir Bay, the Suez Canal and the invasive Red Sea species it let in. So do the natural hazards (Thera, Vesuvius, Etna, the 1908 Messina tsunami) and the wildlife, from the monk seal to the orcas that vanished in the 1980s. Every answer was checked against Wikipedia's articles on the Mediterranean and its features, and each question shows the sentence that supports it. Try our Atlantic Ocean, Greece and Italy quizzes next.
30 of 60 questions with answers and explanations. Play the quiz
Q 01The Mediterranean Sea lies between which three continents?
Europe, Asia and Africa
The Mediterranean lies between Europe, Asia and Africa: Southern Europe to the north, the Levant and Anatolia (in Asia) to the east, and North Africa to the south.
Q 02How wide is the Strait of Gibraltar at its narrowest, where it separates Spain from Morocco?
14 km
At its narrowest the Strait of Gibraltar is about 14 km wide, between Point Marroquí in Spain and Point Cires in Morocco; it is the Mediterranean's only natural link to the Atlantic.
Q 03Which strait runs through Istanbul and opens into the Black Sea?
Bosporus
The Dardanelles lead into the Sea of Marmara first; the Bosporus then cuts through Istanbul into the Black Sea.
Q 04Roughly what share of the global ocean surface does the Mediterranean cover?
0.7%
The Mediterranean covers about 0.7% of the global ocean surface, a tiny fraction of the roughly 361 million square kilometres of ocean on Earth.
Q 05What does 'Mediterranean' literally mean in Latin?
In the middle of land
Mediterraneus means 'in the middle of land', or inland, from medius (middle) and terra (land); it is a calque of the Greek mesogeios.
Q 06What Latin name did the Romans give the sea once the Empire controlled all its shores?
Mare Nostrum
It means 'Our Sea'; earlier Romans had called it Mare Magnum (Great Sea) or Mare Internum (Internal Sea).
Q 07In Turkish the Mediterranean is Akdeniz, meaning what?
White Sea
Akdeniz means 'White Sea', from ak (white) and deniz (sea); in Turkic colour symbolism white stood for the west and black for the north, hence Karadeniz for the Black Sea.
Q 08The Old English name for the Mediterranean, Wendel-sæ, referred to which people?
The Vandals
The Vandals had occupied the North African coast during the Migration Period.
Q 09Which state is the only one ever to have controlled the entire Mediterranean coastline?
Roman Empire
Only the Roman Empire ever ruled every Mediterranean shore; for roughly four centuries after Augustus the sea was effectively a Roman lake.
Q 10Which two civilisations were the earliest advanced societies trading across the Mediterranean?
Egyptians and Minoans
Egyptians and Minoans traded by sea in the Bronze Age: Minoan Crete shipped pottery and textiles to Egypt, and Theban tomb paintings show Keftiu (Cretan) envoys bearing Minoan-style vessels.
Q 11Which Persian king built a canal linking the Red Sea to the Nile, and so to the Mediterranean?
Darius I
Darius I completed the canal in the late sixth century BC and recorded it on stelae; Herodotus says it was wide enough for two triremes to be rowed abreast and took four days to traverse.
Q 12What are the two largest Mediterranean islands, by both area and population?
Sicily and Sardinia
Sicily and Sardinia are the two largest, at roughly 25,700 km² and 24,000 km²; Sicily has about five million residents and Sardinia about 1.6 million, ahead of every other island.
Q 13What is the longest river that empties into the Mediterranean?
Nile
Q 21The residence time of water in the Mediterranean is roughly how long?
100 years
Water in the Mediterranean is renewed through Gibraltar on a timescale of roughly 100 years, a short turnover that makes the sea a sensitive recorder of climate change.
Q 22Which cold winter winds trigger deep-water formation in the Mediterranean?
Bora and Mistral
Bora and Mistral, cold dry winter winds over the Adriatic and the Gulf of Lion respectively, chill and evaporate surface water until it becomes dense enough to sink.
Q 23In nutrient and chlorophyll terms, oceanographers class the Mediterranean as which kind of area?
LNLC
Its basin makes up about two-thirds of the sea's drainage area, though the Rhône and Po discharge similar volumes because Europe is so much wetter.
Q 14Which two island countries lie within the Mediterranean?
Cyprus and Malta
Cyprus and Malta are the only two sovereign island states in the Mediterranean; both joined the European Union on the same day, 1 May 2004.
Q 15Where is the deepest recorded point in the Mediterranean, the Calypso Deep?
Ionian Sea
The Calypso Deep lies in the Ionian Sea, in the Hellenic Trench some 60 km south-west of Pylos in Greece, at a depth of more than 5,100 metres.
Q 16Roughly how long is the Mediterranean from Gibraltar to the Gulf of Alexandretta?
4,000 km
The Mediterranean stretches about 4,000 km from the Strait of Gibraltar east to the Gulf of Alexandretta, today's Gulf of İskenderun in Turkey; its coastline totals some 46,000 km.
Q 17Which event saw the Mediterranean, cut off from the Atlantic, dry out 5.9 million years ago?
Messinian salinity crisis
The Messinian salinity crisis left salt layers over 3 km thick in places, totalling roughly a million cubic kilometres, as the sea evaporated after losing its Atlantic connection.
Q 18The Zanclean flood that last refilled the Mediterranean is estimated to have taken roughly how long?
Less than two years
Models of the Zanclean flood suggest the basin refilled in less than two years, perhaps only months, as water surged through the breached Gibraltar gateway at about a thousand times the Amazon's flow.
Q 19Without the inflow of Atlantic water, the Mediterranean's level would fall by roughly how much each year?
About 1 metre
The sea's net water loss is about 1 metre a year, a deficit made up by Atlantic inflow through Gibraltar; the shortfall is greatest in the eastern basin, where salinity is highest.
Q 20What kind of water exchange takes place through the Strait of Gibraltar?
Two-layer flow
Gibraltar has a two-layer flow: less salty Atlantic water enters at the surface while denser, saltier Mediterranean water flows out beneath it toward the Atlantic.
The Mediterranean is an LNLC (low-nutrient, low-chlorophyll) area, effectively a marine desert; its eastern basin is so starved of nutrients that it is called ultraoligotrophic.
Q 24A shallow ridge between Sicily and which country divides the Mediterranean into two basins?
Tunisia
A shallow submarine ridge across the Strait of Sicily, between Sicily and Tunisia, separates the Western Mediterranean (about 850,000 km²) from the larger Eastern basin (about 1.65 million km²).
Q 25Marsili, one of the largest volcanoes in Europe, lies under which sea about 175 km south of Naples?
Tyrrhenian Sea
Marsili rises from the floor of the Tyrrhenian Sea, about 3,000 m tall and some 70 km long by 30 km wide, which makes it one of Europe's largest volcanoes.
Q 26Which sea lies between Corsica and the Italian coast around Genoa?
Ligurian Sea
The Ligurian Sea washes the coast of Liguria around Genoa and reaches south to Corsica; Elba and the Tuscan Archipelago mark its south-eastern edge.
Q 27The Malta Escarpment, an undersea cliff south of Sicily, is home to more than how many submarine canyons?
500
The 250 km escarpment's cliffs reach 3.5 km high in places, and the canyons were not carved by rivers.
Q 28The 1571 Battle of Lepanto was the last great naval battle fought mainly between which type of vessel?
Galleys
Lepanto was fought almost entirely by oar-driven galleys; the Holy League fleet organised by Pope Pius V destroyed most of the Ottoman galleys in the Gulf of Patras.
Q 29Which Ottoman admiral won the Battle of Preveza in 1538?
Hayreddin Barbarossa
Hayreddin Barbarossa, the Ottoman kapudan pasha, defeated Andrea Doria's Holy League fleet at Preveza in 1538, securing Ottoman naval dominance in the eastern Mediterranean for decades.
Q 30Per Robert Davis, Barbary pirates enslaved about a million Europeans across which centuries?
16th to 19th
Historian Robert Davis estimated that Barbary corsairs from Algiers, Tunis and Tripoli enslaved about a million Europeans from the 16th to 19th centuries, raiding shipping and coastal towns as far away as Iceland.