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
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Query Results: 3078 items found
ppPage: 1 of 31pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2022-01-16 12:52:10408.086.1-6.45154.82SOLOMON ISLANDS
2022-01-14 09:05:4237.196.6-6.93105.25SUNDA STRAIT, INDONESIA
2022-01-11 12:53:4941.885.852.61-168.08FOX ISLANDS, ALEUTIAN ISLANDS
2022-01-11 12:39:3111.236.652.60-168.15FOX ISLANDS, ALEUTIAN ISLANDS
2022-01-11 11:35:4622.326.852.66-167.92FOX ISLANDS, ALEUTIAN ISLANDS
2022-01-11 01:07:4719.66.635.1531.91CYPRUS REGION
2022-01-07 17:45:3010.06.637.81101.27QINGHAI, CHINA
2022-01-06 16:25:0721.656.111.98-87.12NEAR COAST OF NICARAGUA
2022-01-06 02:42:108.134.740.38-124.86NEAR COAST OF NORTHERN CALIF.
2022-01-06 00:28:0711.415.037.33-117.90CALIFORNIA-NEVADA BORDER REGION
2022-01-04 20:55:47556.26.0-4.80125.05BANDA SEA
2022-01-04 03:18:3710.06.135.26-35.24NORTHERN MID-ATLANTIC RIDGE
2022-01-03 09:46:3628.716.224.00122.24TAIWAN REGION
2021-12-29 18:25:51166.927.3-7.59127.58BANDA SEA
2021-12-29 03:57:323.585.754.65170.63NEAR ISLANDS, ALEUTIAN ISLANDS
2021-12-26 15:42:56626.516.1-18.08-179.36FIJI ISLANDS REGION
2021-12-22 23:22:5710.06.018.83-107.21OFF COAST OF JALISCO, MEXICO
2021-12-21 22:42:14152.65.960.12-153.21SOUTHERN ALASKA
2021-12-20 20:10:2016.515.6540.30-124.63NEAR COAST OF NORTHERN CALIF.
2021-12-20 20:10:189.346.2240.31-124.74NEAR COAST OF NORTHERN CALIF.
2021-12-20 03:39:3410.06.0-56.85-24.09SOUTH SANDWICH ISLANDS REGION
2021-12-19 16:28:2210.06.3-16.30178.58FIJI ISLANDS
2021-12-18 20:05:4410.06.0-47.1033.45PRINCE EDWARD ISLANDS REGION
2021-12-16 21:14:4510.06.1-60.23-23.85SOUTH SANDWICH ISLANDS REGION
2021-12-14 03:20:2418.457.3-7.60122.20FLORES SEA
2021-12-12 08:58:0810.06.5-60.69154.11WEST OF MACQUARIE ISLAND
2021-12-08 07:18:2810.05.544.27-129.44OFF COAST OF OREGON
2021-12-08 05:43:4410.05.544.42-129.62OFF COAST OF OREGON
2021-12-08 05:43:3010.05.544.44-129.61OFF COAST OF OREGON
2021-12-08 05:15:2410.05.544.37-129.38OFF COAST OF OREGON
2021-12-08 01:21:0510.05.844.44-128.97OFF COAST OF OREGON
2021-12-08 00:36:3810.05.844.40-129.53OFF COAST OF OREGON
2021-12-07 21:57:5810.05.544.37-129.53OFF COAST OF OREGON
2021-12-07 21:30:1610.05.544.40-129.47OFF COAST OF OREGON
2021-12-04 23:47:57174.266.04.07128.14NORTH OF HALMAHERA, INDONESIA
2021-12-03 04:40:0410.06.2-28.63-112.26EASTER ISLAND REGION
2021-11-30 10:37:3610.06.1-3.60151.34NEW IRELAND REGION, P.N.G.
2021-11-30 10:36:1810.06.0-3.52151.16NEW IRELAND REGION, P.N.G.
2021-11-29 12:40:4910.06.631.10142.80SOUTHEAST OF HONSHU, JAPAN
2021-11-29 12:40:436.146.331.18142.49SOUTHEAST OF HONSHU, JAPAN
2021-11-28 10:52:13112.487.5-4.49-76.85NORTHERN PERU
2021-11-25 23:45:4032.826.122.7993.51MYANMAR-INDIA BORDER REGION
2021-11-25 12:04:1039.916.0-10.75166.48SANTA CRUZ ISLANDS
2021-11-18 14:08:0534.96.2-5.31153.74NEW IRELAND REGION, P.N.G.
2021-11-15 04:23:3010.06.0-37.4951.27SOUTH INDIAN OCEAN
2021-11-14 12:08:3810.06.327.7456.08SOUTHERN IRAN
2021-11-14 12:07:035.636.027.7256.07SOUTHERN IRAN
2021-11-10 15:45:1710.06.623.70126.40SOUTHEAST OF RYUKYU ISLANDS
2021-11-10 15:45:1310.06.623.54126.48SOUTHEAST OF RYUKYU ISLANDS
2021-11-09 06:25:1735.06.211.23-86.52NEAR COAST OF NICARAGUA
2021-11-01 17:04:1715.336.00.2096.72OFF W COAST OF NORTHERN SUMATRA
2021-11-01 00:02:5135.06.1-58.05-25.32SOUTH SANDWICH ISLANDS REGION
2021-10-31 16:37:4521.085.654.91-158.67SOUTH OF ALASKA
2021-10-26 05:48:4210.06.0-58.34-14.81EAST OF SOUTH SANDWICH ISLANDS
2021-10-24 05:11:3464.526.224.57121.83TAIWAN
2021-10-21 08:10:43497.226.0-25.24179.64SOUTH OF FIJI ISLANDS
2021-10-19 05:32:3237.846.034.5728.39EASTERN MEDITERRANEAN SEA
2021-10-18 07:26:5296.486.1-13.74166.94VANUATU ISLANDS
2021-10-15 02:44:5722.556.4-8.88158.48SOLOMON ISLANDS
2021-10-12 09:24:0310.06.435.1926.26CRETE, GREECE
2021-10-11 09:10:2469.16.956.26-156.55ALASKA PENINSULA
2021-10-10 21:48:3635.066.2118.82-155.53HAWAII
2021-10-09 10:58:28485.166.8-21.17174.54VANUATU ISLANDS REGION
2021-10-07 20:13:0110.06.1-58.78158.45MACQUARIE ISLAND REGION
2021-10-04 03:54:0610.06.2-60.42-27.51SOUTH SANDWICH ISLANDS REGION
2021-10-02 06:29:18535.797.3-21.10174.89VANUATU ISLANDS REGION
2021-09-29 08:37:05367.76.138.87135.46SEA OF JAPAN
2021-09-29 08:37:05401.26.545.80153.50EAST OF KURIL ISLANDS
2021-09-27 06:17:228.716.035.2525.26CRETE, GREECE
2021-09-24 11:52:3139.646.151.20-179.03ANDREANOF ISLANDS, ALEUTIAN IS.
2021-09-22 09:57:0830.746.512.16-87.85NEAR COAST OF NICARAGUA
2021-09-21 13:14:3117.426.4-36.79-73.96NEAR COAST OF CENTRAL CHILE
2021-09-20 20:25:2525.026.046.41152.41KURIL ISLANDS
2021-09-16 17:51:5536.55.655.03-156.49SOUTH OF ALASKA
2021-09-13 05:18:13193.386.2-23.89-67.02CHILE-ARGENTINA BORDER REGION
2021-09-08 01:47:4820.07.016.99-99.78NEAR COAST OF GUERRERO, MEXICO
2021-08-31 02:52:4910.06.3-29.96-177.51KERMADEC ISLANDS, NEW ZEALAND
2021-08-24 05:37:5238.676.148.82154.96KURIL ISLANDS
2021-08-22 21:33:2014.07.1-60.29-24.90SOUTH SANDWICH ISLANDS REGION
2021-08-22 00:45:0811.06.8-60.12-24.34SOUTH SANDWICH ISLANDS REGION
2021-08-18 10:10:0489.456.9-14.86167.10VANUATU ISLANDS
2021-08-17 17:53:2947.096.1-58.02-25.47SOUTH SANDWICH ISLANDS REGION
2021-08-16 11:10:3613.956.9-58.36-23.34SOUTH SANDWICH ISLANDS REGION
2021-08-14 12:29:0910.07.218.35-73.48HAITI REGION
2021-08-14 11:57:4433.36.955.08-157.54ALASKA PENINSULA
2021-08-13 10:34:2910.06.3-60.49-27.18SOUTH SANDWICH ISLANDS REGION
2021-08-12 19:44:5561.946.2-59.82-26.38SOUTH SANDWICH ISLANDS REGION
2021-08-12 19:43:4967.76.0-59.96-26.47SOUTH SANDWICH ISLANDS REGION
2021-08-12 18:41:5835.06.1-60.32-26.59SOUTH SANDWICH ISLANDS REGION
2021-08-12 18:41:2235.06.1-60.36-26.76SOUTH SANDWICH ISLANDS REGION
2021-08-12 18:36:5935.06.7-59.98-26.43SOUTH SANDWICH ISLANDS REGION
2021-08-12 18:35:2048.258.1-58.42-25.32SOUTH SANDWICH ISLANDS REGION
2021-08-12 18:32:5463.257.5-57.60-25.19SOUTH SANDWICH ISLANDS REGION
2021-08-11 17:46:1465.67.16.45126.74MINDANAO, PHILIPPINES
2021-08-03 03:42:3810.06.18.8694.01NICOBAR ISLANDS, INDIA REGION
2021-07-30 17:10:1933.186.1-4.92-80.61PERU-ECUADOR BORDER REGION
2021-07-30 03:52:1533.05.555.35-156.98SOUTH OF ALASKA
2021-07-29 06:32:335.05.855.38-156.88SOUTH OF ALASKA
2021-07-29 06:23:3142.26.255.23-157.29ALASKA PENINSULA
2021-07-29 06:23:0235.05.755.88-156.99SOUTH OF ALASKA
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