40 minutes agoGeneric
26LENS
39 SourcesTokyo, Japan
thebalanced.news7.4-Magnitude Earthquake Strikes Off Japan’s Northeast Coast, Tsunami Warning Issued
A powerful earthquake with a magnitude between 7.4 and 7.5 struck off Japan's northeastern coast near the Sanriku region on April 20, 2026, at a shallow depth of about 10 km. The Japan Meteorological Agency issued tsunami warnings for Iwate, Aomori, and Hokkaido prefectures, forecasting waves up to three metres. The quake caused strong shaking felt as far as Tokyo, leading to halted bullet train services and emergency evacuations. Authorities urged residents in coastal areas to move to higher ground and remain there until warnings are lifted. No immediate reports of major damage or casualties have been confirmed, while emergency teams continue to monitor the situation.
Political Bias
0%100%0%
Sentiment
33%
AI Analysis
Political bias across 39 sources
● Left 0%● Center 100%● Right 0%
The article group presents a largely factual and technical account of the earthquake and tsunami warnings, with official sources such as the Japan Meteorological Agency and government statements prominently featured. Coverage includes government responses and safety advisories without political commentary or partisan framing. The focus remains on public safety and disaster management, reflecting a neutral stance across sources.
Sentiment — Negative (33/100)
The overall tone across the articles is serious and cautionary, emphasizing the potential risks and safety measures without sensationalism. While the earthquake and tsunami warnings naturally convey concern, the coverage balances this with information on preparedness and the absence of confirmed major damage or casualties. The sentiment is thus measured and informative, reflecting the gravity of the event without undue alarm.
How 15 sources covered this story
Each source's own headline, political lean, and sentiment — so you can see framing differences at a glance.
Coverage timeline
thestatesman broke this story on 20 Apr, 09:27 am. Other outlets followed.
- 1thestatesman20 Apr, 09:27 amTsunami alert issued in northeast Japan after 7.4 magnitude quake offshore
- 2oneindia20 Apr, 09:27 amTsunami Heads Towards Japan After Powerful 7.4-Magnitude Earthquake; Terrifying Visuals Captured Watch
- 3theprint20 Apr, 09:34 amMajor 7.5-magnitude quake hits off Japan, triggers tsunami warnings
- 4indiatoday20 Apr, 09:47 am7.5-magnitude earthquake jolts Japan. What's happening below the surface?
- 5zeenews20 Apr, 09:57 am7.5 magnitude earthquake in Japan, Tsunami warning issued
- 6news1820 Apr, 10:03 am7.5 magnitude earthquake in Japan, Tsunami warning issued
- 7freepressjournal20 Apr, 10:23 amPowerful 7.5 Magnitude Earthquake Strikes Northern Japan, Triggering Tsunami Alert
- 8indiatoday20 Apr, 10:42 am7.5 magnitude earthquake strikes Japan, triggers tsunami alert
- 9timesnow20 Apr, 10:48 amTsunami Warning Live Updates: 7.5 Earthquake Off Japan Coast Triggers Tsunami Warning
- 10northeastnow20 Apr, 10:52 amPowerful 7.5-magnitude earthquake hits Japan, triggers tsunami warning
Lens Score breakdown
26/100
Public interest0/100
Coverage gap80%
Well-covered story — coverage matches public importance.
Accountability flags
TBN's analysis identified the following accountability dimensions in this story.
- public safety issue
This story involves a risk to public safety — infrastructure failure, regulatory lapse, hazardous conditions, or emergency mishandling.
Who's involved
Institutions and figures named across source coverage.
Government
Japan Meteorological AgencyPrime Minister's Office
Corporate
Tokyo Electric Power
Story context
- Category
- Generic
- Location
- Tokyo, Japan
- Sources analysed
- 39
- Last analysed
- 20 Apr 2026
- Key entities
- EarthquakeJapanTsunamiJapan Meteorological AgencyIwate PrefectureHokkaidoMoment magnitude scalePacific OceanAomori PrefectureTsunami warning systemPrefectures of JapanTokyo
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