M7.7 earthquake strikes central Panama

1. Question 1Answer A

   USGS first reported the 9 October 2026 Panama earthquake as what magnitude?

   • ACorrect answer: M8.0
   • BM7.9
   • CM7.2
   • DM8.5

   Core Trigger: A magnitude 7.7 earthquake hit central Panama on 9 October 2026; USGS first reported it as M8.0.From Book 1 RATNA, topic 290, point 1

2. Question 2Answer B

   What effect did the quake's shallow depth have?

   • AIt reduced surface shaking
   • BCorrect answer: It magnified surface shaking
   • CIt prevented aftershocks
   • DIt triggered a volcanic eruption

   Epicentre: It was near Pitaloza Arriba in the Herrera province area, at shallow depth, which magnifies surface shaking.From Book 1 RATNA, topic 290, point 2

3. Question 3Answer A

   Roads and buildings collapsed in Herrera, Los Santos and which other province?

   • ACorrect answer: Cocle
   • BDarien
   • CColon
   • DChiriqui

   Damage: Roads and buildings collapsed in Herrera, Cocle and Los Santos provinces.From Book 1 RATNA, topic 290, point 3

4. Question 4Answer C

   What magnitudes did the two aftershocks have?

   • AM6.8 and M6.5
   • BM4.8 and M4.5
   • CCorrect answer: M5.8 and M5.5
   • DM7.1 and M6.0

   Aftershocks: Two aftershocks of M5.8 and M5.5 followed.From Book 1 RATNA, topic 290, point 4

5. Question 5Answer D

   Which is/are correct? 1. A Pacific tsunami warning remains in force. 2. Panama lies outside the Pacific Ring of Fire.

   • AOnly 1
   • BOnly 2
   • CBoth 1 and 2
   • DCorrect answer: Neither

   Tsunami Alert: A Pacific tsunami warning was issued and later lifted. Such warnings follow large undersea or coastal quakes.From Book 1 RATNA, topic 290, point 5

6. Question 6Answer D

   India monitors Pacific tsunami alerts through which Hyderabad-based centre?

   • ANIOT
   • BNCS
   • CIMD
   • DCorrect answer: INCOIS

   India Link: India monitors Pacific tsunami alerts through INCOIS, its Hyderabad-based tsunami warning centre.From Book 1 RATNA, topic 290, point 7

7. Question 7Answer B

   Panama links which two continents?

   • AAfrica and Asia
   • BCorrect answer: North and South America
   • CEurope and Africa
   • DAsia and Europe

   Venue: Panama links North America and South America, with its capital at Panama City.From Book 1 RATNA, topic 290, point 8

8. Question 8Answer B

   The Panama Canal opened in which year?

   • A1904
   • BCorrect answer: 1914
   • C1869
   • D1920

   Landmark: The Panama Canal joins the Atlantic and Pacific Oceans; it opened in 1914.From Book 1 RATNA, topic 290, point 9

9. Question 9Answer A

   Which scale replaced the Richter scale for measuring large earthquakes?

   • ACorrect answer: Moment magnitude scale
   • BMercalli scale
   • CSaffir-Simpson scale
   • DBeaufort scale

   Scale: The moment magnitude (Mw) scale replaced the Richter scale for measuring large earthquakes.From Book 1 RATNA, topic 290, point 10

10. Question 10Answer A

    Which is/are correct? 1. The Richter scale was devised in 1935 by Charles Richter. 2. The epicentre is the underground point where rupture begins.

    • ACorrect answer: Only 1
    • BOnly 2
    • CBoth 1 and 2
    • DNeither

    Founded: The Richter scale was devised in 1935 by Charles Richter.From Book 1 RATNA, topic 290, point 11

Open these answers in the app (sign-in needed)