{"schemaVersion":1,"slug":"java-sea-2026","title":"The earthquake beneath the Java Sea","dek":"A deep earthquake, a revised estimate, and the evidence behind the map. Follow the September 11 event through preserved USGS records.","retrievedAt":"2026-09-13T18:13:29.537Z","event":{"id":"us7000tgrk","time":"2026-09-11T21:23:55.907Z","updated":"2026-09-12T21:29:59.017Z","longitude":106.8742,"latitude":-4.9832,"depthKm":372,"magnitude":6.5,"magnitudeType":"mww","place":"126 km NNE of Teluknaga, Indonesia","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000tgrk","status":"reviewed","sourceId":"event-record"},"articleId":"usgs-us7000tgrk","bounds":[102,-10,112,-2],"events":[{"id":"us7000te82","time":"2026-09-04T05:04:54.278Z","updated":"2026-09-05T05:54:46.068Z","longitude":109.0409,"latitude":-7.9867,"depthKm":10,"magnitude":5.2,"magnitudeType":"mb","place":"28 km S of Cilacap, Indonesia","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000te82","status":"reviewed","sourceId":"catalogue"},{"id":"us7000teiy","time":"2026-09-05T10:59:15.678Z","updated":"2026-09-05T14:39:01.542Z","longitude":102.7513,"latitude":-4.4202,"depthKm":68.934,"magnitude":5,"magnitudeType":"mb","place":"70 km SW of Pagar Alam, Indonesia","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000teiy","status":"reviewed","sourceId":"catalogue"},{"id":"us7000tfyn","time":"2026-09-09T00:23:19.728Z","updated":"2026-09-12T01:37:45.080Z","longitude":102.8454,"latitude":-4.9167,"depthKm":39.565,"magnitude":4.5,"magnitudeType":"mb","place":"108 km SSW of Pagar Alam, Indonesia","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000tfyn","status":"reviewed","sourceId":"catalogue"},{"id":"us7000tgrk","time":"2026-09-11T21:23:55.907Z","updated":"2026-09-12T21:29:59.017Z","longitude":106.8742,"latitude":-4.9832,"depthKm":372,"magnitude":6.5,"magnitudeType":"mww","place":"126 km NNE of Teluknaga, Indonesia","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000tgrk","status":"reviewed","sourceId":"catalogue"}],"catalogue":{"sourceId":"catalogue","startTime":"2026-09-01T00:00:00.000Z","endTime":"2026-09-13T00:00:00.000Z","minimumMagnitude":3,"bounds":[102,-10,112,-2],"count":4,"description":"Regional catalogue context. These four events are selected by place, date and magnitude; this does not establish an aftershock relationship. Occurrence time is separate from when a record became known."},"sources":[{"id":"event-record","title":"USGS earthquake record and saved product history","url":"https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&eventid=us7000tgrk&includesuperseded=true","retrievedAt":"2026-09-13T18:13:29.537Z","kind":"primary-data","description":"Current preferred origin and preserved superseded USGS products. Saved estimates are not guaranteed to include the first public alert.","issuedAt":"2026-09-12T21:29:59.017Z"},{"id":"origin-earlier","title":"USGS earlier saved origin","url":"https://earthquake.usgs.gov/product/origin/us7000tgrk/us/1789162910040/quakeml.xml","retrievedAt":"2026-09-13T18:14:27.152Z","kind":"primary-data","description":"Version-specific QuakeML origin and magnitude, preserved separately from the current catalogue.","issuedAt":"2026-09-11T21:41:50.040Z"},{"id":"origin-current","title":"USGS current saved origin","url":"https://earthquake.usgs.gov/product/origin/us7000tgrk/us/1789217862040/quakeml.xml","retrievedAt":"2026-09-13T18:14:29.952Z","kind":"primary-data","description":"Version-specific QuakeML origin and magnitude, preserved separately from the current catalogue.","issuedAt":"2026-09-12T12:57:42.040Z"},{"id":"shakemap-current","title":"USGS ShakeMap version 4: intensity grid","url":"https://earthquake.usgs.gov/product/shakemap/us7000tgrk/us/1789248418779/download/coverage_mmi_low_res.covjson","retrievedAt":"2026-09-13T18:14:59.342Z","kind":"model-estimate","description":"Automatic ShakeMap, based on a reviewed origin. Grid cells estimate surface shaking; they are not a damage survey.","issuedAt":"2026-09-12T21:26:58.779Z"},{"id":"shakemap-earlier","title":"USGS ShakeMap version 1: saved contours","url":"https://earthquake.usgs.gov/product/shakemap/us7000tgrk/us/1789163221069/download/cont_mmi.json","retrievedAt":"2026-09-13T18:14:28.975Z","kind":"model-estimate","description":"The first numbered ShakeMap product in this retrieved history; not a reconstruction from current data.","issuedAt":"2026-09-11T21:47:01.069Z"},{"id":"shakemap-method","title":"USGS ShakeMap processing record","url":"https://earthquake.usgs.gov/product/shakemap/us7000tgrk/us/1789248418779/download/info.json","retrievedAt":"2026-09-13T18:14:29.597Z","kind":"primary-data","description":"Processing history marks version 3 as an origin update and version 4 as a scheduled repeat.","issuedAt":"2026-09-12T21:26:58.779Z"},{"id":"catalogue","title":"USGS bounded regional earthquake catalogue","url":"https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&starttime=2026-09-01T00%3A00%3A00&endtime=2026-09-13T00%3A00%3A00&minlatitude=-10&maxlatitude=-2&minlongitude=102&maxlongitude=112&minmagnitude=3&orderby=time-asc","retrievedAt":"2026-09-13T18:15:03.051Z","kind":"primary-data","description":"All four returned M3+ catalogue events within 102–112°E and 10–2°S, from September 1 through September 13, 2026, 00:00 UTC. 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This general explanation does not prove the impact of this event."},{"id":"magnitude-intensity","title":"USGS: magnitude and intensity explained","url":"https://www.usgs.gov/faqs/what-difference-between-earthquake-magnitude-and-earthquake-intensity-what-modified-mercalli","retrievedAt":"2026-09-13T18:13:29.537Z","kind":"explanation","description":"Magnitude describes the earthquake source; intensity describes shaking at a particular location."},{"id":"magnitude-explainer","title":"USGS: magnitude and shaking intensity","url":"https://www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity","retrievedAt":"2026-09-13T18:13:29.537Z","kind":"explanation","description":"Magnitude describes earthquake size; intensity varies by location."}],"evidence":[{"id":"origin-earlier","label":"Earlier saved origin","sourceId":"origin-earlier","time":"2026-09-11T21:41:50.040Z","eventTime":"2026-09-11T21:23:55.001Z","text":"This saved USGS origin lists M6.6 at 358.597 km depth. 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USGS explains that shaking generally weakens with increasing distance from its source; depth is one factor, alongside magnitude and local ground conditions.","sourceIds":["origin-current","depth-explainer","magnitude-explainer"]},{"title":"A changing estimate","text":"The saved magnitude moved from 6.6 to 6.5. This is a revision to the estimate of the same earthquake, not a second earthquake or a measurement of damage.","sourceIds":["origin-earlier","origin-current"]},{"title":"What this cannot tell us","text":"These records do not establish a verified casualty total, building damage, or the exact shaking experienced at every address. The regional catalogue cannot establish that one earthquake caused another.","sourceIds":["event-record","catalogue","shakemap-current"]}],"limitations":["This is a saved source snapshot, not live monitoring. Later official revisions may exist.","The occurrence timeline uses currently retrieved catalogue solutions; it does not recreate the information available at each event time.","Evidence milestones use the issuance times of real preserved USGS products. The earliest saved version is not asserted to be the first public alert.","Magnitude, modeled intensity, and observed impacts are separate quantities. No casualty or damage conclusion is inferred from the map."],"preparedAt":"2026-09-13T18:19:15.226Z"}