Tsunami and Earthquake, Oarfish or doomsday fish Connection, Tsunami warning – alerts

Tsunamis and earthquakes are two of nature’s most powerful and destructive phenomena. Earthquakes occur due to tectonic movements beneath the Earth’s crust, and when these quakes happen under or near the ocean, they can trigger massive tsunamis. These natural disasters not only cause immense loss of life and infrastructure but also significantly impact economies and ecosystems. This article explores the science behind earthquakes and tsunamis, presents key global data from the past century, examines their interrelation, and highlights recent trends including unusual indicators like oarfish sightings.

Table of Contents : Tsunami and Earthquake

1. Introduction
2. What is an Earthquake?
3. Causes of Earthquakes
4. Earthquake Data Table – Major Quakes in the Last 10 Years
5. What is a Tsunami?
6. Relationship Between Earthquake and Tsunami
7. 100 Years Tsunami Data Table
8. Recent Earthquake Activity (Past 2 Months)
9. Oarfish and Tsunami Connection
10. Summary
11. Conclusion
12. References

1. Introduction : Tsunami and Earthquake

Disasters such as earthquakes and tsunamis have played a significant role in molding the Earth’s terrain and influencing its historical development. Despite scientific advances, predicting the precise timing of these events remains challenging. However, understanding their patterns and impacts helps in mitigation planning and public awareness.

2. What is an Earthquake?

An earthquake is the sudden shaking of the ground caused by the release of energy from the Earth’s lithosphere due to tectonic stress. The energy generated during an earthquake moves through the Earth’s layers as seismic waves. The strength of earthquakes is typically assessed using the Richter scale or the moment magnitude scale (Mw).

3. Causes of Earthquakes

• Tectonic Plate Movement – Major cause due to converging, diverging, or sliding plates.
• Volcanic Activity – Magma movement can trigger seismic activity.
• Human Activities – Mining, reservoir-induced seismicity (dams), and fracking.
• Fault Line Stress Accumulation – Sudden release of stress along faults.

4. Earthquake Data Table – Last 10 Years (Magnitude >7.0)

Year	Country	Magnitude	Casualties	Economic Loss (USD)	Region
2015	Nepal	7.8	~9,000	$10 Billion	South Asia
2016	Ecuador	7.8	676	$3 Billion	South America
2017	Mexico	8.1	98	$2 Billion	North America
2018	Indonesia	7.5	4,340	$1.3 Billion	Southeast Asia
2020	Turkey	7.0	114	$1.1 Billion	Europe
2021	Haiti	7.2	2,248	$1.5 Billion	Caribbean
2023	Turkey-Syria	7.8	~59,000	$91 Billion	Middle East
2023	Morocco	6.8	~2,900	$11.7 Billion	North Africa
2024	Papua New Guinea	7.0	10+	Minimal	Oceania
2024	Japan	7.6	48	$5 Billion	East Asia

Source: USGS, UNDRR, EM-DAT

5. What is a Tsunami?

A tsunami is a series of ocean waves caused by sudden displacement of water due to seismic activity, usually under the sea. Tsunamis travel at jet speed (up to 800 km/h) in deep ocean and grow in height as they approach the shore, causing massive destruction.

6. Relationship Between Earthquake and Tsunami

Most tsunamis are caused by undersea earthquakes. The vertical displacement of the ocean floor during a powerful earthquake transfers energy into the water, forming waves. For example, the 2004 Indian Ocean tsunami followed a 9.1 magnitude quake off the coast of Sumatra.

7. 100 Years Tsunami Data Table

Year	Ocean / Region	Magnitude	Max Wave Height	Casualties	Economic Loss (USD)
2004	Indian Ocean	9.1	~30 m	~230,000	$15 Billion
2011	Pacific (Japan)	9.0	~40 m	~20,000	$360 Billion
1960	Pacific (Chile)	9.5	~25 m	~6,000	$550 Million
1952	Kamchatka (Russia)	9.0	~15 m	Few hundred	Unknown

Sources: NOAA, Pacific Tsunami Warning Center, UNESCO IOC

8. Recent Earthquake Activity – Past 2 Months (Magnitude >6.0)

Date	Country	Magnitude	Depth (km)	Casualties	Region
June 18, 2025	Indonesia	6.4	35	5+	Sulawesi
July 2, 2025	Philippines	6.8	45	Minor	Luzon
July 10, 2025	Chile	6.3	70	None	Central Coast
July 21, 2025	Japan	6.9	50	Under review	Honshu
July 25, 2025	Alaska (USA)	6.6	18	None	North Pacific

Sources: USGS, IRIS Seismic Monitor

9.Oarfish and Tsunami Connection

The oarfish, a deep-sea serpent-like fish, has gained attention due to reports of surfacing before seismic events. In Japanese folklore, oarfish are called “messengers from the sea god,” believed to signal upcoming disasters. While there’s no definitive scientific proof, several oarfish sightings preceded notable earthquakes in Japan, Indonesia, and the Philippines, prompting ongoing research into their behavior as potential bio-indicators.

Read More Tsunami Warning -Alerts 30 July 2025 :

Worldwide Tsunami  Warning – Alerts: Twin Earthquakes Shake Russia and Andaman Region:

The Earth’s tectonic tension unfolded in two significant seismic events within 24 hours. While a massive 8.7 magnitude earthquake struck off Russia’s Kamchatka Peninsula prompting global tsunami warnings, another moderate 5.8 magnitude quake rocked the Andaman Sea—though with no tsunami threat.

These back-to-back tremors have once again reminded the world of the dynamic and often volatile nature of our planet’s crust, emphasizing the urgent need for public awareness, preparedness, and global seismic monitoring systems.

🌊 Russia’s Kamchatka Quake: A Wake-Up Call for the Pacific Rim

In the early hours of July 30 (local time), a powerful 8.7 magnitude undersea earthquake struck near the Kamchatka Peninsula in Russia’s Far East. According to the U.S. Geological Survey (USGS), the quake originated at a shallow depth of 19 kilometers, a common characteristic of tsunamigenic quakes. Read More

10. Summary

Earthquakes and tsunamis are deeply interlinked natural disasters with devastating impacts. Earthquakes result from tectonic movements, while tsunamis are often their oceanic consequence. Data from the last century reveals warning systems. Emerging theories, such as the behavior of marine species like the oarfish, open new avenues for predictive research.

11. Conclusion

Understanding the science and historical patterns of earthquakes and tsunamis is crucial for mitigating risk and protecting communities. Investment in early warning systems, coastal planning, and international cooperation can save lives and reduce economic loss. Nature often offers signals—we just need to learn how to listen.

12. References

• United States Geological Survey (USGS) – www.usgs.gov
• Pacific Tsunami Warning Center – www.tsunami.gov
• EM-DAT: The International Disaster Database – www.emdat.be
• National Oceanic and Atmospheric Administration (NOAA)
• Intergovernmental Oceanographic Commission (IOC-UNESCO)
• Seismological Research Letters (2024)
• Nature Journal on Marine Biology & Earthquake Indicators (2023)

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