ArticleslgStudy

earth science

Redonda

Redonda is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Redonda rather than just read about it. In short: Redonda (Antiguan and Barbudan Creole: Radonda or Radawnda) is an uninhabited Caribbean island which is a dependency of Saint John, Antigua and Barbuda, in the Leeward Islands, West Indies. The island is about 1.6 kilometres (1 mi) long, 0.5 kilometres (0.3 mi) wide, and is 296 metres (971 ft) high at its highest point.

Redonda — main illustration
Redonda — illustration

Key takeaways

  • Redonda belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Redonda to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Redonda from memory before moving on to harder problems.

Reference excerpt

Redonda (Antiguan and Barbudan Creole: Radonda or Radawnda) is an uninhabited Caribbean island which is a dependency of Saint John, Antigua and Barbuda, in the Leeward Islands, West Indies. The island is about 1.6 kilometres (1 mi) long, 0.5 kilometres (0.3 mi) wide, and is 296 metres (971 ft) high at its highest point. It lies between the islands of Nevis and Montserrat, 56.2 kilometres (34.9 mi) southwest of Antigua. Redonda is closer to Montserrat than to any other island; it is located 22.5 kilometres (14.0 mi) northwest of Montserrat and 32 kilometres (20 mi) southeast of Nevis. Redonda is home to vast numbers of sea birds, and the island was an important source of guano before artificial fertilisers started to be mass-produced. Guano-mining operations started in the 1860s and ceased after the start of World War I. During the mining operations a few buildings and other installations were put in place on the island, and some physical remnants of that phase in its history are still visible. The name "Redonda" means "round" in Spanish. In 1493, on his second voyage to the New World, Christopher Columbus saw the island and named it "Santa María la Redonda" (the name in the Spanish language means "Saint Mary the Round"). The island was annexed by the Antiguan Parish of Saint John on 26 March 1872.

Description

At a distance, Redonda appears as if it were one very large rock. It is the remnant of an ancient extinct volcano. The land rises from sea level mostly as sheer cliffs, especially on the leeward (west) side. At the top of the island there is a relatively flat but tilted area of grassland which slopes to the east. There is no source of fresh water other than rain. Judging by the name he gave the island, to Columbus the island appeared to be rounded, at least in profile. In reality the island is long and narrow, and reaches a height of almost 1,000 feet (300 m). The actual land area of the island is hard to estimate because of the extreme steepness of the slopes, but it is calculated to be somewhere between 1.6 square kilometres (400 acres) and 2.6 square kilometres (640 acres). Redonda is uninhabited. The difficult topography, the lack of a safe place to land a boat, and the absence of any freshwater source other than rainfall makes the island inhospitable to humans.

A herd of feral goats and thousands of rats were cleared from the island in 2017 as part of an island restoration programme.

History In 1493, Christopher Columbus and his crew became the first known Europeans to see Redonda, on his second journey. He claimed it for the Crown of Castile, but did not land there. He named the island Santa María la Redonda, meaning Saint Mary the Round, reflecting the island's apparent profile when viewed from the side. As the island is a rock of just over a square kilometre, it did not represent any interest for the powers involved in the colonisation of the Americas and, for centuries, it was a refuge for pirates. In the 1860s, deposits of phosphate derived from seabird guano were discovered on Redonda, leading to commercial mining operations employing labourers from nearby Montserrat. The island was subsequently annexed to the British colony of Antigua (1869) in order to regulate extraction of these resources, and its incorporation was formalised by the Redonda Annexation Act of 1872. During the decades after the 1860s, the rich guano deposits of Redonda were mined for fertiliser, with an annual yield of up to 7,000 tons. Only during this time was the island inhabited by workers; the population was 120 in 1901. After the guano mining, aluminium phosphate for gunpowder production was discovered and mined. A cableway was constructed to transport material down to the loading pier on the coast. In 1914, during the First World War, the mining operations ceased, and most workers left the island. Maintenance workers remained on the island until 1929, when a hurricane destroyed almost all the remaining facilities. The island has remained uninhabited since then. Two stone huts still stand from the time when the island was occupied. Although the closest island to Redonda is Montserrat, and the second closest is Nevis, in 1967 Redonda became a dependency of the more distant Antigua, now part of Antigua and Barbuda. Scientists from the Montserrat Volcano Observatory visit the island in a helicopter periodically; they are using Redonda as an observation point from which to take measurements of the Soufrière Hills, an active volcano on Montserrat.

Ecology and conservation The island is a breeding colony for multiple species of seabirds. It has been designated an Important Bird Area (IBA) by BirdLife International because it supports red-footed, brown and masked boobies, as well as magnificent frigatebirds. Animals endemic to the island include the Redonda ground dragon, the Redonda anole and an unnamed species of dwarf gecko. The island's local ecology was severely affected by invasive species, particularly introduced goats and rats, for almost a century. Island restoration efforts were initiated in 2016, beginning with removing the island's 60 goats and roughly 6,000 rats. The Redonda Restoration Programme involves the Environmental Awareness Group, Wildlife Management International and Fauna and Flora International. Several years after the goats were removed, some local plant life began to recover. In September 2023, the Redonda Ecosystem Reserve was established, covering nearly 30,000 hectares (74,000 acres) of land and sea, making it the largest marine protected area in the region.

Micronation

… excerpt ends here. Continue reading the full article.

Illustrations

Redonda illustration
Redonda illustration
Redonda: Antigua and Barbuda map with Redonda (lower left).
Antigua and Barbuda map with Redonda (lower left).
Redonda: The west (leeward) coast of Redonda consists almost entirely of sheer cliffs many hundreds of feet high, 2011
The west (leeward) coast of Redonda consists almost entirely of sheer cliffs many hundreds of feet high, 2011
Redonda: A small stone hut on the top of the island dates from the days when guano was mined there.
A small stone hut on the top of the island dates from the days when guano was mined there.

Worked examples

Example 1 — a first encounter with Redonda

Start with the simplest possible case. Write down what Redonda claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Redonda before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Redonda ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Redonda

In research
Redonda appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Redonda in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Redonda is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1967 establishments in Antigua and Barbuda, Dependencies of Antigua and Barbuda, Former populated places in Antigua and Barbuda, so understanding it makes those chapters shorter.
In everyday life
Look for Redonda outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Redonda in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Redonda means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Redonda out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Redonda in simple terms?

Redonda (Antiguan and Barbudan Creole: Radonda or Radawnda) is an uninhabited Caribbean island which is a dependency of Saint John, Antigua and Barbuda, in the Leeward Islands, West Indies. The island is about 1.6 kilometres (1 mi) long, 0.5 kilometres (0.3 mi) wide, and is 296 metres (971 ft) high…

Why does Redonda matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Redonda?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Redonda.

Tags

  • 1967 establishments in Antigua and Barbuda
  • Dependencies of Antigua and Barbuda
  • Former populated places in Antigua and Barbuda
  • Important Bird Areas of Antigua and Barbuda
  • Island restoration
  • Populated places established in the 15th century
  • Redonda
  • Saint John, Antigua and Barbuda
  • Stacks (geology)
  • States and territories established in 1967
  • Uninhabited islands of Antigua and Barbuda

Keep exploring