Get our newsletter!
Check out our volcano tours on!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours
8-16 May 2021: From Stromboli to Etna - Sicila and Eolian Islands (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out
Interactive map of latest earthquakes and active volcanoes in the world

Strong mag. 6.1 earthquake - Northwest of Ryukyu Islands (Japan) on Saturday, 13 July 2019

Strong mag. 6.1 earthquake  - Northwest of Ryukyu Islands (Japan) on Saturday, 13 July 2019
13 Jul 01:04 UTC: First to report: GFZ after 6 minutes.
Jul 13 01:04: Magnitude recalculated from 5.9 to 5.8.
Hypocenter depth recalculated from 242.0 to 233.0 km.
Jul 13 10:00: Magnitude recalculated from 5.8 to 6.1.
Hypocenter depth recalculated from 233.0 to 248.0 km.
Date & time: Saturday, 13 July 2019 00:57 UTC
Magnitude: 6.1
Depth: 248.0 km
Epicenter latitude / longitude: 29.46°N / 128.08°E (Japan)
Nearest volcano: Yokoate-jima (105 km / 65 mi)
Nearby towns and cities:
183 km (114 mi) NW of Naze (pop: 41,400)
1289 km (801 mi) SW of Tokyo (pop: 8,336,600)
Primary data source: GFZ
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Sat, 13 Jul 00:57 UTCM 6.1 / 248 kmNorthwest of Ryukyu Islands (Japan)GFZ
Sat, 13 Jul 00:57 UTCM 6.1 / 237 kmNorthwest Of Ryukyu Islands (Japan)EMSC
Sat, 13 Jul 00:57 UTCM 5.7 / 224 kmNorthwest of Ryukyu Islands (Japan)BMKG
Sat, 13 Jul 00:57 UTCM 6.2 / 243 kmNorthwest of Ryukyu Islands (Japan)GeoAu
2019-07-13 09:57:44 +09:00 (13 Jul 00:57:44 UTC)M 6.1 / 251 km169km NW of Naze, JapanUSGS
Sat, 13 Jul 00:57 UTCM 6.0 / 255.1 kmNorthwest of Ryukyu Islands, Japan [Sea: Japan]INGV
2019-07-13 08:57:41 (13 Jul 00:57:41 UTC)M 6.0 / 230 km东海海域 (Japan)CEIC

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Miyazaki / Very weak shaking (MMI II)
350.9 km S of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Okinawa / Very weak shaking (MMI II)
Russia. Sankt-Peterburg.not felt. / not felt : Не спал, находился дома, не почувствовал и не ощутил, всё впорядке, пожалуйста, оставайтесь в безопастности, берегите своих родных и близких.))),!!!
Miyazaki (420.7 km NE of epicenter) [Map] / Weak shaking (MMI III) : The apartment shaking woke me up. (reported through our app)

Aftershocks of the 6.1 quake: Northwest of Ryukyu Islands (Japan), 13 Jul 2019 00:57

More info
Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.

Earlier earthquakes in the same area since 1900

Strong mag. 6.1 earthquake - Northwest of Ryukyu Islands (Japan) on Saturday, 13 July 2019

Map of earlier quakes


More on VolcanoDiscovery

Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.