In order to comply with NIED's updated Terms and Conditions, Earthquake Early Warnings are temporarily unavailable without a Project DM-D.S.S subscription. We're working on a solution to be released in a future update, but for now, we apologise for the inconvenience.

Since September 2022, JQuake supports a paid service named Project DM-D.S.S.

For 550 yen (JPY) per month, this service provides information distributed by the Japan Meteorological Agency (Japan Meteorological Service Support Centre) immediately via WebSockets, etc., and is highly reliable in terms of data reception and data quality.

Additionally, users who have subscribed to the Project DM-D.S.S service categories (telegram.earthquake: [earthquake and tsunami information], eew.forecast: [all EEW], eew.warning: [warning only EEW]) can use the functions according to the category to which they have subscribed. Note - there is no need to subscribe to both eew.forecast and eew.warning.

Users who subscribe to the option for additional simultaneous WebSocket connections can use multiple JQuake instances, and other applications at the same time. Note that to avoid overpayment, users who have both eew.forecast and telegram.earthquake subscriptions enabled won't be able to subscribe to the JQuake plan.

In order to comply with NIED's updated Terms and Conditions, Earthquake Early Warnings are temporarily unavailable without a Project DM-D.S.S subscription. We're working on a solution to be released in a future update, but for now, we apologise for the inconvenience.



Without DM-D.S.S With DM-D.S.S
Speed of Delivery
EEW 1st Report N/A* 30ms ~ 100ms
EEW 2nd Report + N/A* 30ms ~ 100ms
JMA Earthquake Info 5s ~ 1min 30ms ~ 100ms
JMA Earthquake Info
(Areas without access to Yahoo! Japan)
2min ~ 5min 30ms ~ 100ms
Tsunami Warnings/Advisories 2min ~ 3min 30ms ~ 100ms
 
Reliability of Delivery
Guaranteed Server Operation
Geographic Server Redundancy
 
Content
Basic EEW
(excl. Deep EEW, Advanced EEW)
Deep Earthquake EEW (>150 km)
Advanced EEW
(PLUM Method, Level Method, etc.)
Expected Int. (incl. PLUM Method)
EEW Cancellation Reports
Detailed JMA Earthquake Info.
(Local Intensity Observations)