J1 Earthquake Early Warning
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Message Update Time Quake Time Coordinates Epicenter Depth Magnitude Intensity Location
22017-04-18 02:39:292017-04-18 02:39:0134.6-NL 140.2-ELOff the southeast coast of Chiba904.73 Sea
42017-04-18 02:39:342017-04-18 02:39:0134.6-NL 140.2-ELOff the southeast coast of Chiba904.52 Sea
52017-04-18 02:39:472017-04-18 02:39:0134.6-NL 140.2-ELOff the southeast coast of Chiba904.42 Sea
6 (final)2017-04-18 02:40:032017-04-18 02:39:0134.6-NL 140.2-ELOff the southeast coast of Chiba904.42 Sea
Archive Earthquake Data
  JMA (final quake data) EEW (preliminary reports)
2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2012 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2013 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2014 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2015 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2016 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2017 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7