About SPUD

SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

About Ground Motion Visualization Products

The Ground Motion Visualization (GMV) illustrates how seismic waves travel away from the earthquake location by depicting the recorded wave amplitudes at each seismic station location using colored symbols. For more information on GMVs visit the GMV product page.

Two types of GMVs are produced:

  • Vertical-component GMV:
    Produced for US events of magnitude 5.5 or larger and global events of magnitude 6 or larger. The symbol colors represent the amplitude of the vertical ground motion, as detected by the station's seismometer.
  • 3-Component GMV:
    Produced only for events with magnitude 7 and larger use 'tailed' symbols to show direction and amplitude of the normalized horizontal motion. Symbol colors also represent the amplitude of the vertical ground motion, as detected by the station's seismometer.

This product is automatically generated without human review.

GMV Query Help

This page queries for GMV products.

Citing Ground Motion Visualization Products

If you use GMVs in publications, please cite according to the instructions at:



— Chuck Ammon, Professor of Geosciences at Penn State’s original concept and visualizations. Read more
— Bob Woodward at IRIS - adapted the visualization code to MATLAB

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Event Criteria
Depth (km)
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Query Results: 2976 items found
ppPage: 1 of 30pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2021-07-26 12:09:0610.676.2-0.75121.93MINAHASSA PENINSULA, SULAWESI
2021-07-24 12:51:2911.136.1-29.95-176.90KERMADEC ISLANDS REGION
2021-07-23 20:48:57112.06.713.70120.71MINDORO, PHILIPPINES
2021-07-21 21:15:1210.06.77.42-82.79SOUTH OF PANAMA
2021-07-17 20:56: OF PANAMA
2021-07-10 00:43:5768.336.12.96126.64NORTHERN MOLUCCA SEA
2021-07-08 22:49:489.836.038.52-119.50CALIFORNIA-NEVADA BORDER REGION
2021-07-04 01:29:1310.06.0-28.73-71.66NEAR COAST OF CENTRAL CHILE
2021-07-04 01:01:3510.06.0-28.76-71.65NEAR COAST OF CENTRAL CHILE
2021-07-02 20:14:38605.636.1-21.83-179.36FIJI ISLANDS REGION
2021-06-21 11:14:1227.016.0-30.33-177.45KERMADEC ISLANDS, NEW ZEALAND
2021-06-20 17:05:4810.06.3-30.21-177.77KERMADEC ISLANDS, NEW ZEALAND
2021-06-04 08:17:0014.495.942.25-126.15OFF COAST OF OREGON
2021-06-04 07:52:429.065.942.30-126.33OFF COAST OF OREGON
2021-06-03 10:09:5831.236.10.31126.35NORTHERN MOLUCCA SEA
2021-05-31 06:59:5443.96.162.45-148.25CENTRAL ALASKA
2021-05-21 22:13:1810.06.5-16.60-177.35FIJI ISLANDS REGION
2021-05-21 18:04:1310.07.334.5998.25QINGHAI, CHINA
2021-05-21 13:48:3710.06.125.76100.01YUNNAN, CHINA
2021-05-19 00:42:2010.06.7-33.08-109.32SOUTHERN EAST PACIFIC RISE
2021-05-17 20:25:0831.345.551.24179.47RAT ISLANDS, ALEUTIAN ISLANDS
2021-05-14 06:33:0710.06.60.1796.65OFF W COAST OF NORTHERN SUMATRA
2021-05-13 23:58:1437.746.037.71141.72NEAR EAST COAST OF HONSHU, JAPAN
2021-05-13 09:42:1210.06.06.75-82.37SOUTH OF PANAMA
2021-05-12 14:05:1610.06.7-17.2566.37MAURITIUS - REUNION REGION
2021-05-07 23:35:13378.556.0-18.78-177.40FIJI ISLANDS REGION
2021-05-07 15:21:1410.06.0-54.38144.19WEST OF MACQUARIE ISLAND
2021-05-01 01:27:2747.36.838.23141.66NEAR EAST COAST OF HONSHU, JAPAN
2021-04-29 10:30:2310.05.543.84-128.10OFF COAST OF OREGON
2021-04-28 02:21:2634.06.026.7892.44NORTHEASTERN INDIA
2021-04-25 22:28:00234.016.4-21.69-177.06FIJI ISLANDS REGION
2021-04-24 00:23:36289.256.4-18.92-176.24FIJI ISLANDS REGION
2021-04-19 23:58:2210.06.00.1896.54OFF W COAST OF NORTHERN SUMATRA
2021-04-10 11:38:3210.06.0-3.45145.72NEAR N COAST OF NEW GUINEA, PNG.
2021-04-10 09:30:44311.316.14.11124.67CELEBES SEA
2021-04-10 07:00:1782.286.0-8.56112.52JAVA, INDONESIA
2021-04-08 17:10:1877.75.563.21-148.58CENTRAL ALASKA
2021-04-07 09:53:2810.06.0-29.10-176.67KERMADEC ISLANDS REGION
2021-04-05 07:37:5010.06.0-37.52179.67OFF E. COAST OF N. ISLAND, N.Z.
2021-04-03 01:16:3910.06.6-57.99-7.81EAST OF SOUTH SANDWICH ISLANDS
2021-04-01 15:11:18597.776.0-21.87-179.34FIJI ISLANDS REGION
2021-04-01 09:56:3610.06.3-29.98-177.69KERMADEC ISLANDS, NEW ZEALAND
2021-03-20 09:09:4554.07.038.48141.61NEAR EAST COAST OF HONSHU, JAPAN
2021-03-20 05:19:3110.06.1-59.62150.31WEST OF MACQUARIE ISLAND
2021-03-18 00:04:0710.06.036.925.21NORTHERN ALGERIA
2021-03-16 18:38:2222.066.654.70163.21OFF EAST COAST OF KAMCHATKA
2021-03-14 12:05:1310.06.0-59.84-29.50SOUTH SANDWICH ISLANDS REGION
2021-03-06 13:12:0510.06.1-28.29-177.63KERMADEC ISLANDS REGION
2021-03-06 12:05:2310.06.2-28.34-177.91KERMADEC ISLANDS REGION
2021-03-06 07:16:2910.296.1-28.62-177.00KERMADEC ISLANDS REGION
2021-03-06 00:16:218.996.3-37.60179.60OFF E. COAST OF N. ISLAND, N.Z.
2021-03-04 23:12:5710.06.2-28.48-176.62KERMADEC ISLANDS REGION
2021-03-04 20:25:0610.06.1-28.40-176.65KERMADEC ISLANDS REGION
2021-03-04 19:28:3119.48.1-29.74-177.27KERMADEC ISLANDS, NEW ZEALAND
2021-03-04 17:41:2555.577.4-29.61-177.84KERMADEC ISLANDS, NEW ZEALAND
2021-03-04 16:53:11172.146.1-14.45167.30VANUATU ISLANDS
2021-03-04 13:27:3620.787.3-37.56179.44OFF E. COAST OF N. ISLAND, N.Z.
2021-03-03 10:16:1010.06.339.7622.18GREECE
2021-02-18 15:30:5010.06.1-14.88-176.74FIJI ISLANDS REGION
2021-02-18 06:37:3010.06.2-19.01167.89VANUATU ISLANDS REGION
2021-02-17 22:49:3812.636.1-23.19171.76SOUTHEAST OF LOYALTY ISLANDS
2021-02-16 00:49:2814.06.7-17.80-167.80TONGA ISLANDS REGION
2021-02-16 00:49:2610.06.2-17.81167.47VANUATU ISLANDS
2021-02-13 15:33:5751.756.0-7.29149.40NEW BRITAIN REGION, P.N.G.
2021-02-13 14:07:4954.07.037.69141.99NEAR EAST COAST OF HONSHU, JAPAN
2021-02-11 06:52:3010.06.0-23.30171.72SOUTHEAST OF LOYALTY ISLANDS
2021-02-10 21:23:5910.06.4-23.26171.62SOUTHEAST OF LOYALTY ISLANDS
2021-02-10 16:35:2310.06.1-22.84171.08SOUTHEAST OF LOYALTY ISLANDS
2021-02-10 13:20:0010.07.7-23.25171.49SOUTHEAST OF LOYALTY ISLANDS
2021-02-10 13:02:0010.06.1-22.78171.58SOUTHEAST OF LOYALTY ISLANDS
2021-02-10 12:52:2710.06.2-5.66101.66SOUTHWEST OF SUMATRA, INDONESIA
2021-02-10 12:24:2110.06.0-22.88171.67SOUTHEAST OF LOYALTY ISLANDS
2021-02-07 05:45:5210.06.3-3.29146.06BISMARCK SEA
2021-02-07 04:22:5615.556.06.78125.21MINDANAO, PHILIPPINES
2021-02-03 05:23:4110.06.9-36.43-98.16SOUTHEAST OF EASTER ISLAND
2021-01-23 23:36:507.767.0-61.85-55.56SOUTH SHETLAND ISLANDS
2021-01-21 12:23:0595.817.05.01127.52PHILIPPINE ISLANDS REGION
2021-01-19 02:46:2220.06.4-31.82-68.85SAN JUAN PROVINCE, ARGENTINA
2021-01-14 18:28:1818.366.2-3.00118.92SULAWESI, INDONESIA
2021-01-11 21:32:5810.06.751.24100.44RUSSIA-MONGOLIA BORDER REGION
2021-01-10 06:48:20160.06.1-16.04167.85VANUATU ISLANDS
2021-01-10 03:54:12202.776.1-24.02-66.67SALTA PROVINCE, ARGENTINA
2021-01-08 05:01:04117.746.1-20.74169.88VANUATU ISLANDS
2021-01-08 00:28:49222.36.3-29.41-178.76KERMADEC ISLANDS, NEW ZEALAND
2021-01-06 20:59:35157.366.10.01122.93MINAHASSA PENINSULA, SULAWESI
2021-01-06 06:20:3226.126.2-29.07-176.90KERMADEC ISLANDS REGION
2021-01-03 12:38:4817.086.151.19-179.84ANDREANOF ISLANDS, ALEUTIAN IS.
2020-12-29 11:19:5410.06.445.4116.30NORTHWESTERN BALKAN REGION
2020-12-29 07:10:2910.05.743.37-126.91OFF COAST OF OREGON
2020-12-27 21:39:1510.06.7-39.35-74.91OFF COAST OF CENTRAL CHILE
2020-12-24 23:43:42113.966.313.82120.65MINDORO, PHILIPPINES
2020-12-20 17:23:1910.06.240.84142.54NEAR EAST COAST OF HONSHU, JAPAN
2020-12-15 23:21:5926.876.15.21125.44MINDANAO, PHILIPPINES
2020-12-14 15:20:49110.566.0-21.81-68.69CHILE-BOLIVIA BORDER REGION
2020-12-10 20:42:0682.716.0-32.98-179.76SOUTH OF KERMADEC ISLANDS
2020-12-10 13:19:5873.176.124.76122.01TAIWAN REGION
2020-12-06 16:47:4197.516.1-20.36-69.08NORTHERN CHILE
2020-12-01 20:52:5710.06.2-61.98154.70BALLENY ISLANDS REGION
2020-12-01 16:35:4810.05.753.70-150.58SOUTH OF ALASKA
2020-12-01 16:22:4023.06.352.84-168.31FOX ISLANDS, ALEUTIAN ISLANDS
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