Earthquake
More extensive information will be added here - including tweets about this quake, lives affected (or lost), neighboring communities and cities affected, member comments, "who felt it", and more. Proximity and distance to the earthquake is already availble to logged-in members with an address on their profile. If the member is within 0-1000km of the earthquake, the distance matrix will calculate land transport distance and a the shortest distance between two points ( as the crow flies ). If the earthquake occurred at sea, nautical miles are also calculated.
Members who request notification will automatically receive an email and/or SMS text message for any earthquakes greater than 5.5. If the member adds family contact, the contact will be notified by email that "A Xm earthquake has occurred within Xkm of membername.". All notifications are on an opt-in basis. The IMOK feature will allow the member to single-click on their phone (or in the email) to quickly signal they are fine. IMOK is available for logged in members on an opt-in basis.
The 3D globe (right) will create two pins - one for the earthquake and one for the geographic location of the member viewing this page. If the visitor is not logged in, only one pin for the quake is rendered. The exact position of the moon at the time of the earthquake is included for your interest, and will display illumination %, phase, distance from Earth, the sun, and whether or not the moon was above (or below) the horizon. Some will argue the moon plays no role in influencing earthquakes, and some will argue the opposite. After all, the moon has an effect on tides. Either way, including the appearance of the moon at the exact time of the earthquake is extremely cool. Special thanks to the US Navy (military observatory) for making it possible.
Screenshot example displaying member's proximity:
Calculating
Array ( [type] => Feature [properties] => Array ( [mag] => 3.3 [place] => 25 km NNW of Petersville, Alaska [time] => 1713648844911 [updated] => 1714424538040 [tz] => [url] => https://earthquake.usgs.gov/earthquakes/eventpage/ak02453xcx8i [felt] => 2 [cdi] => 3.1 [mmi] => [alert] => [status] => automatic [tsunami] => 0 [sig] => 168 [net] => ak [code] => 02453xcx8i [ids] => ,ak02453xcx8i,us7000mdj4, [sources] => ,ak,us, [types] => ,dyfi,origin,phase-data, [nst] => [dmin] => [rms] => 0.47 [gap] => [magType] => ml [type] => earthquake [title] => M 3.3 - 25 km NNW of Petersville, Alaska [products] => Array ( [dyfi] => Array ( [0] => Array ( [indexid] => 24632422 [indexTime] => 1713650439393 [id] => urn:usgs-product:us:dyfi:ak02453xcx8i:1713650436555 [type] => dyfi [code] => ak02453xcx8i [source] => us [updateTime] => 1713650436555 [status] => UPDATE [properties] => Array ( [depth] => 87.2 [eventsource] => ak [eventsourcecode] => 02453xcx8i [eventtime] => 2024-04-20T21:34:04.000Z [latitude] => 62.7015 [longitude] => -150.9807 [magnitude] => 3.3 [maxmmi] => 3.1 [num-responses] => 2 [numResp] => 2 [original-signature] => MC4CFQDRND5wv0yw330nOXEpSpabQQ9wagIVAOtUm+odf+X7pblEV81mT5IAp//W [original-signature-version] => v1 [pdl-client-version] => Version 2.7.10 2021-06-21 ) [preferredWeight] => 53 [contents] => Array ( [dyfi_zip.geojson] => Array ( [contentType] => application/octet-stream [lastModified] => 1713650436000 [length] => 373 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_zip.geojson [sha256] => hAxB9t2rFHBeEAoqXoS1kO7ULCzCMXuJMi3Z9sqKNII= ) [dyfi_geo_10km.geojson] => Array ( [contentType] => application/octet-stream [lastModified] => 1713650436000 [length] => 585 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_geo_10km.geojson [sha256] => i4GdHV0yclPGhRrHP1T6Mie6CQYzyD52PurBoiTEsFI= ) [ak02453xcx8i_plot_numresp.ps] => Array ( [contentType] => application/postscript [lastModified] => 1713650436000 [length] => 32964 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_numresp.ps [sha256] => KFf9O/N8sM5J7qDq3Rt+ZqbJ0GDVmi7Vc73mfdITxMA= ) [dyfi_geo_1km.geojson] => Array ( [contentType] => application/octet-stream [lastModified] => 1713650436000 [length] => 564 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_geo_1km.geojson [sha256] => ngEpI5Bq5zQAnE4tEui4RJGv/guBykCd8qh3S+/OcoA= ) [ak02453xcx8i_ciim.jpg] => Array ( [contentType] => image/jpeg [lastModified] => 1713650436000 [length] => 57948 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim.jpg [sha256] => FQGWeniiYonNW+f71xP30fbBm5zF+h17XqBW07LezcI= ) [cdi_geo.txt] => Array ( [contentType] => text/plain [lastModified] => 1713650436000 [length] => 280 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/cdi_geo.txt [sha256] => 8X7FStwjT2r6OKVRfoJOza4r6s/HLZGyxqfs9gFX3O0= ) [ak02453xcx8i_ciim_geo.ps] => Array ( [contentType] => application/postscript [lastModified] => 1713650436000 [length] => 58648 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim_geo.ps [sha256] => gvbB0+ULzl/0v3zhWsmZb42anDbQYYBQJeqZBwqTI0A= ) [contents.xml] => Array ( [contentType] => application/xml [lastModified] => 1713650436000 [length] => 4254 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/contents.xml [sha256] => By65SvgFJEkyoWcWx3K4LWvdrzUI0oyHyteNVhBl0b8= ) [dyfi_plot_atten.json] => Array ( [contentType] => application/json [lastModified] => 1713650436000 [length] => 2113 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_plot_atten.json [sha256] => TOHUx65FbWVymKisFjJRCI5/6LrayipFAdNSP39jpz0= ) [cdi_geo.xml] => Array ( [contentType] => application/xml [lastModified] => 1713650436000 [length] => 645 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/cdi_geo.xml [sha256] => mEZ09gWkFWY4tYZY6hss9NxYi4a1xhCuoPFWt1/c/9Q= ) [dyfi_geo.geojson] => Array ( [contentType] => application/octet-stream [lastModified] => 1713650436000 [length] => 564 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_geo.geojson [sha256] => ngEpI5Bq5zQAnE4tEui4RJGv/guBykCd8qh3S+/OcoA= ) [ak02453xcx8i_ciim.pdf] => Array ( [contentType] => application/pdf [lastModified] => 1713650436000 [length] => 18262 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim.pdf [sha256] => pJw+g2t967qhN12tdUhQIK7iw6ZUIMXwTDNJHRA57vY= ) [ak02453xcx8i_plot_atten.ps] => Array ( [contentType] => application/postscript [lastModified] => 1713650436000 [length] => 49374 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_atten.ps [sha256] => oPnNMXADrMV2CItQ9PeCZ0p4kc71CiFaU6k9PNms4y8= ) [ak02453xcx8i_ciim_geo.jpg] => Array ( [contentType] => image/jpeg [lastModified] => 1713650436000 [length] => 56788 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim_geo.jpg [sha256] => 2upNDOVS20CCcDL2vrG8uzFRu2vTgRegr4py0ZK3FrA= ) [cdi_zip.xml] => Array ( [contentType] => application/xml [lastModified] => 1713650436000 [length] => 511 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/cdi_zip.xml [sha256] => Xjp6q6FxStXZ1gN09OececFcnZhKYMr38Peus2RrPLo= ) [dyfi_geo.kmz] => Array ( [contentType] => application/vnd.google-earth.kmz [lastModified] => 1713650436000 [length] => 782 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_geo.kmz [sha256] => 25vjtRKUq69KU35YTF7vzC8WR7p9RvYUyAHDWcs9MAA= ) [ak02453xcx8i_plot_numresp.jpg] => Array ( [contentType] => image/jpeg [lastModified] => 1713650436000 [length] => 33292 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_numresp.jpg [sha256] => UJdlObPnonBJ6nNkZbc4qET3a1JxHJrIXOo6kvVoVgY= ) [ak02453xcx8i_ciim.ps] => Array ( [contentType] => application/postscript [lastModified] => 1713650436000 [length] => 61710 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim.ps [sha256] => DftvZDD1fQHY9gzxHMlPphtc/kT2aqzZCV2mqwHDZus= ) [dyfi_zip.kmz] => Array ( [contentType] => application/vnd.google-earth.kmz [lastModified] => 1713650436000 [length] => 1332 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_zip.kmz [sha256] => b5IqRkqjnLj4tBeSR2/Ig+aseyXCfnRjF14sjWZo63o= ) [cdi_zip.txt] => Array ( [contentType] => text/plain [lastModified] => 1713650436000 [length] => 257 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/cdi_zip.txt [sha256] => 4ymGVFC4UaNS+gNdmqNU9o0xOgyTSe5QXj4OdwO3HsM= ) [ak02453xcx8i_ciim_geo_imap.html] => Array ( [contentType] => text/html [lastModified] => 1713650436000 [length] => 305 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim_geo_imap.html [sha256] => eyKly2HSSC8qUxn3HJ/SgHTy1yJEWMLZWXNFynujQk8= ) [event_data.xml] => Array ( [contentType] => application/xml [lastModified] => 1713650436000 [length] => 3058 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/event_data.xml [sha256] => vIceWeky10GXIwkwnJN37w140pUSfurEDVPAi36gddM= ) [ak02453xcx8i_plot_atten.jpg] => Array ( [contentType] => image/jpeg [lastModified] => 1713650436000 [length] => 37656 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_atten.jpg [sha256] => B8MLPTXVxAA/yCz+ZXmhLbTCW32izI0gKWCHEsJcsmE= ) [ak02453xcx8i_ciim_geo.pdf] => Array ( [contentType] => application/pdf [lastModified] => 1713650436000 [length] => 16837 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim_geo.pdf [sha256] => 2JZsgo7qdgLM4Xj4LoN2wnkDTpMNiyqGfA313A9rPek= ) [dyfi_plot_numresp.json] => Array ( [contentType] => application/json [lastModified] => 1713650436000 [length] => 276 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi_plot_numresp.json [sha256] => j9JdhnDg4IdcIxLmOxmiBPyqN7K/tX6CnHIcG37+wfg= ) [ak02453xcx8i_ciim_imap.html] => Array ( [contentType] => text/html [lastModified] => 1713650436000 [length] => 484 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_ciim_imap.html [sha256] => IGcaG6pRCAPclI3s18f+39r+SZJeRsYb4juAaJwFLew= ) [ak02453xcx8i_plot_numresp.txt] => Array ( [contentType] => text/plain [lastModified] => 1713650436000 [length] => 134 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_numresp.txt [sha256] => KBjWcwVAG28RoUll2JE59pdxARy739BwE5SJYf+NNWM= ) [cdi_geo_10km.txt] => Array ( [contentType] => text/plain [lastModified] => 1713650436000 [length] => 302 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/cdi_geo_10km.txt [sha256] => motetZdfjXJa8xC9e2xDonpKzGphBdb1afj5lmDU+Ks= ) [dyfi.kmz] => Array ( [contentType] => application/vnd.google-earth.kmz [lastModified] => 1713650436000 [length] => 1169 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/dyfi.kmz [sha256] => 4KB7U2Sc4rawnFMK70vtTWIYGeEq5mAr0OSBYyXdjMI= ) [ak02453xcx8i_plot_atten.txt] => Array ( [contentType] => text/plain [lastModified] => 1713650436000 [length] => 1802 [url] => https://earthquake.usgs.gov/product/dyfi/ak02453xcx8i/us/1713650436555/ak02453xcx8i_plot_atten.txt [sha256] => pdQ9wII13aYKuobOoV1g18G7wjGZMxGvqylHCv4dcH4= ) ) ) ) [origin] => Array ( [0] => Array ( [indexid] => 24632340 [indexTime] => 1713649333631 [id] => urn:usgs-product:ak:origin:AK02453xcx8i:1713648952574 [type] => origin [code] => AK02453xcx8i [source] => ak [updateTime] => 1713648952574 [status] => UPDATE [properties] => Array ( [depth] => 87.2 [evaluation-status] => preliminary [event-type] => earthquake [eventParametersPublicID] => quakeml:earthquake.alaska.edu [eventsource] => ak [eventsourcecode] => 02453xcx8i [eventtime] => 2024-04-20T21:34:04.911Z [latitude] => 62.7015 [longitude] => -150.9807 [magnitude] => 3.3 [magnitude-type] => ml [num-phases-used] => 71 [original-signature] => MCwCFCVQFU7s8CStC+0rhJlHEpae2JolAhRzWhndmqC2JyMq0lgkMAf+ZuP5aA== [original-signature-version] => v1 [quakeml-magnitude-publicid] => quakeml:earthquake.alaska.edu/magnitude/02453xcx8i/ml [quakeml-origin-publicid] => quakeml:earthquake.alaska.edu/origin/02453xcx8i [quakeml-publicid] => quakeml:earthquake.alaska.edu/event/02453xcx8i [review-status] => automatic [standard-error] => 0.47 [title] => 25 km NNW of Petersville, Alaska [version] => 1 [vertical-error] => 0.6 ) [preferredWeight] => 157 [contents] => Array ( [contents.xml] => Array ( [contentType] => application/xml [lastModified] => 1713648953000 [length] => 195 [url] => https://earthquake.usgs.gov/product/origin/AK02453xcx8i/ak/1713648952574/contents.xml [sha256] => ABhLiaqdYWmIak24eD/csBAWouBShhatD9bUzLNEZFk= ) [quakeml.xml] => Array ( [contentType] => application/xml [lastModified] => 1713648952000 [length] => 1930 [url] => https://earthquake.usgs.gov/product/origin/AK02453xcx8i/ak/1713648952574/quakeml.xml [sha256] => QUXtC30jF+g5b449ZYlrn+JobIgdoZmTk7v4cP874Ns= ) ) ) [1] => Array ( [indexid] => 24674553 [indexTime] => 1714424544361 [id] => urn:usgs-product:us:origin:us7000mdj4:1714424538040 [type] => origin [code] => us7000mdj4 [source] => us [updateTime] => 1714424538040 [status] => UPDATE [properties] => Array ( [azimuthal-gap] => 30 [depth] => 86.687 [depth-type] => from location [error-ellipse-azimuth] => 77 [error-ellipse-intermediate] => 5522 [error-ellipse-major] => 7004 [error-ellipse-minor] => 4839 [error-ellipse-plunge] => 58 [error-ellipse-rotation] => 11 [evaluation-status] => confirmed [event-type] => earthquake [eventParametersPublicID] => quakeml:us.anss.org/eventparameters/7000mdj4/1714424540 [eventsource] => us [eventsourcecode] => 7000mdj4 [eventtime] => 2024-04-20T21:34:04.778Z [eventtime-error] => 0.75 [horizontal-error] => 3.53 [latitude] => 62.7257 [latitude-error] => 0.0288 [longitude] => -151.0054 [longitude-error] => 0.0766 [magnitude] => 3.6 [magnitude-error] => 0.028 [magnitude-num-stations-used] => 164 [magnitude-source] => us [magnitude-type] => ml [minimum-distance] => 0.228 [num-phases-used] => 70 [num-stations-used] => 56 [origin-source] => us [original-signature] => MCwCFCFXhwXPry1xH+5Efw/IJ6gVC4DmAhQzpVZsLxgRrcy/tQzpE/d9mHLRcg== [original-signature-version] => v1 [pdl-client-version] => Version 2.9.1 2023-05-15 [quakeml-magnitude-publicid] => quakeml:us.anss.org/magnitude/7000mdj4/ml [quakeml-origin-publicid] => quakeml:us.anss.org/origin/7000mdj4 [quakeml-publicid] => quakeml:us.anss.org/event/7000mdj4 [review-status] => reviewed [standard-error] => 0.37 [title] => 28 km NNW of Petersville, Alaska [vertical-error] => 4.366 ) [preferredWeight] => 8 [contents] => Array ( [contents.xml] => Array ( [contentType] => application/xml [lastModified] => 1714424542000 [length] => 195 [url] => https://earthquake.usgs.gov/product/origin/us7000mdj4/us/1714424538040/contents.xml [sha256] => ABhLiaqdYWmIak24eD/csBAWouBShhatD9bUzLNEZFk= ) [quakeml.xml] => Array ( [contentType] => application/xml [lastModified] => 1714424538000 [length] => 3840 [url] => https://earthquake.usgs.gov/product/origin/us7000mdj4/us/1714424538040/quakeml.xml [sha256] => /7TqBFOYmnk60cIqszfT00l6RBgnPgAIKUxFoQd4ISU= ) ) ) ) [phase-data] => Array ( [0] => Array ( [indexid] => 24632355 [indexTime] => 1713649334518 [id] => urn:usgs-product:ak:phase-data:AK02453xcx8i:1713648952574 [type] => phase-data [code] => AK02453xcx8i [source] => ak [updateTime] => 1713648952574 [status] => UPDATE [properties] => Array ( [depth] => 87.2 [evaluation-status] => preliminary [event-type] => earthquake [eventParametersPublicID] => quakeml:earthquake.alaska.edu [eventsource] => ak [eventsourcecode] => 02453xcx8i [eventtime] => 2024-04-20T21:34:04.911Z [latitude] => 62.7015 [longitude] => -150.9807 [magnitude] => 3.3 [magnitude-type] => ml [num-phases-used] => 71 [original-signature] => MC0CFALgS5f6VMWTGH5vJU3h+ULF+Ys5AhUAg9jZTdiu4d/Vq1g5cTdgu/r2w0Q= [original-signature-version] => v1 [quakeml-magnitude-publicid] => quakeml:earthquake.alaska.edu/magnitude/02453xcx8i/ml [quakeml-origin-publicid] => quakeml:earthquake.alaska.edu/origin/02453xcx8i [quakeml-publicid] => quakeml:earthquake.alaska.edu/event/02453xcx8i [review-status] => automatic [standard-error] => 0.47 [version] => 1 [vertical-error] => 0.6 ) [preferredWeight] => 157 [contents] => Array ( [contents.xml] => Array ( [contentType] => application/xml [lastModified] => 1713648953000 [length] => 195 [url] => https://earthquake.usgs.gov/product/phase-data/AK02453xcx8i/ak/1713648952574/contents.xml [sha256] => ABhLiaqdYWmIak24eD/csBAWouBShhatD9bUzLNEZFk= ) [quakeml.xml] => Array ( [contentType] => application/xml [lastModified] => 1713648952000 [length] => 83441 [url] => https://earthquake.usgs.gov/product/phase-data/AK02453xcx8i/ak/1713648952574/quakeml.xml [sha256] => TgPZilxUJfD0jyiuwtYFygUkuKykYec87DRWLZ+4qm8= ) ) ) [1] => Array ( [indexid] => 24674555 [indexTime] => 1714424545185 [id] => urn:usgs-product:us:phase-data:us7000mdj4:1714424538040 [type] => phase-data [code] => us7000mdj4 [source] => us [updateTime] => 1714424538040 [status] => UPDATE [properties] => Array ( [azimuthal-gap] => 30 [depth] => 86.687 [depth-type] => from location [error-ellipse-azimuth] => 77 [error-ellipse-intermediate] => 5522 [error-ellipse-major] => 7004 [error-ellipse-minor] => 4839 [error-ellipse-plunge] => 58 [error-ellipse-rotation] => 11 [evaluation-status] => confirmed [event-type] => earthquake [eventParametersPublicID] => quakeml:us.anss.org/eventparameters/7000mdj4/1714424540 [eventsource] => us [eventsourcecode] => 7000mdj4 [eventtime] => 2024-04-20T21:34:04.778Z [eventtime-error] => 0.75 [horizontal-error] => 3.53 [latitude] => 62.7257 [latitude-error] => 0.0288 [longitude] => -151.0054 [longitude-error] => 0.0766 [magnitude] => 3.6 [magnitude-error] => 0.028 [magnitude-num-stations-used] => 164 [magnitude-source] => us [magnitude-type] => ml [minimum-distance] => 0.228 [num-phases-used] => 70 [num-stations-used] => 56 [origin-source] => us [original-signature] => MC4CFQCQ01wjb3jkXoD1K9Uxhwo1X4S8pQIVAJlv26JG1JkuCmlreRTlWfdBpAAu [original-signature-version] => v1 [pdl-client-version] => Version 2.9.1 2023-05-15 [quakeml-magnitude-publicid] => quakeml:us.anss.org/magnitude/7000mdj4/ml [quakeml-origin-publicid] => quakeml:us.anss.org/origin/7000mdj4 [quakeml-publicid] => quakeml:us.anss.org/event/7000mdj4 [review-status] => reviewed [standard-error] => 0.37 [vertical-error] => 4.366 ) [preferredWeight] => 8 [contents] => Array ( [contents.xml] => Array ( [contentType] => application/xml [lastModified] => 1714424542000 [length] => 195 [url] => https://earthquake.usgs.gov/product/phase-data/us7000mdj4/us/1714424538040/contents.xml [sha256] => ABhLiaqdYWmIak24eD/csBAWouBShhatD9bUzLNEZFk= ) [quakeml.xml] => Array ( [contentType] => application/xml [lastModified] => 1714424538000 [length] => 319846 [url] => https://earthquake.usgs.gov/product/phase-data/us7000mdj4/us/1714424538040/quakeml.xml [sha256] => R3ESfjcgrfc1IIJw83EKQqKzASEQxCc/Z3gjf1Y7AK8= ) ) ) ) ) ) [geometry] => Array ( [type] => Point [coordinates] => Array ( [0] => -150.9807 [1] => 62.7015 [2] => 87.2 ) ) [id] => ak02453xcx8i )