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 USArray Ground Motion Visualization (GMV) illustrates how seismic waves travel away from the earthquake location by depicting the recorded wave amplitudes at each EarthScope/USArray 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

The page queries for GMV products.

Citing Ground Motion Visualization Products

If you use GMVs in publications, please cite:

Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern and R. Aster (2012), Data products at the IRIS DMC: stepping-stones for research and other application, Seismological Research Letters, 83(6), 846:854. doi: 10.1785/0220 120032


— 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)
Max Lat:
Min Lon: Max Lon:
Min Lat:
Query Results: 1892 items found
ppPage: 1 of 19pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2014-04-20 00:15:5818.16.1-7.17155.31SOLOMON ISLANDS
2014-04-19 13:27:5930.97.5-6.72154.93SOLOMON ISLANDS
2014-04-19 01:04:0645.56.9-6.70155.07SOLOMON ISLANDS
2014-04-18 18:44:171.05.667.67-162.49NORTHERN ALASKA
2014-04-18 14:27:2948.67.517.58-100.74GUERRERO, MEXICO
2014-04-18 04:13:1210.06.0-11.15164.81SANTA CRUZ ISLANDS REGION
2014-04-17 15:06:5117.56.2-62.86155.63BALLENY ISLANDS REGION
2014-04-15 03:57:0211.76.9-53.538.70BOUVET ISLAND REGION
2014-04-13 13:25:0335.06.6-11.13162.04SOLOMON ISLANDS
2014-04-13 12:36:1835.07.5-11.45162.06SOLOMON ISLANDS
2014-04-12 20:14:3929.37.6-11.31162.21SOLOMON ISLANDS
2014-04-12 05:24:2756.56.1-7.11155.21SOLOMON ISLANDS
2014-04-11 20:29:13135.06.611.59-86.04NEAR COAST OF NICARAGUA
2014-04-11 08:16:4950.66.7-6.84154.97SOLOMON ISLANDS
2014-04-11 07:07:2250.67.3-6.65155.04SOLOMON ISLANDS
2014-04-11 00:01:4417.56.2-20.75-70.72NEAR COAST OF NORTHERN CHILE
2014-04-10 23:27:4610.06.112.54-86.47NICARAGUA
2014-04-04 11:40:3263.76.0-10.53161.67SOLOMON ISLANDS
2014-04-04 01:37:5120.06.3-20.62-70.74NEAR COAST OF NORTHERN CHILE
2014-04-03 05:26:1624.36.5-20.81-70.55NEAR COAST OF NORTHERN CHILE
2014-04-03 02:43:1520.07.8-20.43-70.11NEAR COAST OF NORTHERN CHILE
2014-04-03 01:58:2910.06.4-20.29-70.59NEAR COAST OF NORTHERN CHILE
2014-04-01 23:58:0018.06.9-19.42-70.26NEAR COAST OF NORTHERN CHILE
2014-04-01 23:46:4510.08.0-19.63-70.86NEAR COAST OF NORTHERN CHILE
2014-03-26 03:29:35475.16.5-26.10179.29SOUTH OF FIJI ISLANDS
2014-03-23 18:19:596.16.1-19.77-70.95NEAR COAST OF NORTHERN CHILE
2014-03-22 12:59:5920.06.3-19.76-70.87NEAR COAST OF NORTHERN CHILE
2014-03-21 13:41:0710.06.57.7794.32NICOBAR ISLANDS, INDIA
2014-03-17 05:11:3417.06.4-20.00-70.87NEAR COAST OF NORTHERN CHILE
2014-03-16 21:16:3335.07.0-19.84-70.57NEAR COAST OF NORTHERN CHILE
2014-03-15 23:51:309.86.3-5.57-80.88NEAR COAST OF NORTHERN PERU
2014-03-15 08:59:209.86.2-14.06-76.23NEAR COAST OF PERU
2014-03-13 17:06:5182.96.333.68131.74KYUSHU, JAPAN
2014-03-13 13:20:5937.05.551.36-179.27ANDREANOF ISLANDS, ALEUTIAN IS.
2014-03-11 02:44:0510.06.4-60.84-19.96EAST OF SOUTH SANDWICH ISLANDS
2014-03-10 05:18:127.06.940.82-125.13OFF COAST OF NORTHERN CALIFORNIA
2014-03-05 09:56:58636.76.3-14.73169.82VANUATU ISLANDS
2014-03-02 20:11:22112.36.727.42127.36RYUKYU ISLANDS
2014-03-02 09:37:5670.96.412.63-87.64NEAR COAST OF NICARAGUA
2014-02-26 21:13:4137.25.754.80-172.36BERING SEA
2014-02-26 21:13:40264.66.153.68-171.84FOX ISLANDS, ALEUTIAN ISLANDS
2014-02-18 09:27:1417.46.714.69-59.01WINDWARD ISLANDS
2014-02-12 09:19:4912.46.835.9282.56XIZANG
2014-02-08 19:50:3618.26.0-60.44-45.24SCOTIA SEA
2014-02-07 08:40:12111.26.5-15.06167.30VANUATU ISLANDS
2014-02-03 22:36:4118.16.1-7.16128.10BANDA SEA
2014-02-03 03:08:4613.76.138.2920.34GREECE
2014-02-02 09:26:3519.46.6-32.90-177.82SOUTH OF KERMADEC ISLANDS
2014-02-01 03:58:43126.66.1-56.81-27.27SOUTH SANDWICH ISLANDS REGION
2014-01-26 13:55:4318.86.038.2120.42GREECE
2014-01-25 05:14:2083.16.1-8.00109.24JAWA, INDONESIA
2014-01-21 01:29:076.16.2-15.14-174.68TONGA ISLANDS
2014-01-20 02:52:4427.36.3-40.65175.86NORTH ISLAND, NEW ZEALAND
2014-01-16 07:33:1240.05.851.28-179.19ANDREANOF ISLANDS, ALEUTIAN IS.
2014-01-13 04:01:0428.56.519.00-66.83PUERTO RICO REGION
2014-01-01 16:03:30196.16.6-13.87167.20VANUATU ISLANDS
2013-12-17 23:38: ISLANDS REGION
2013-12-07 16:44:1013.15.555.19-157.84ALASKA PENINSULA
2013-12-01 06:29:5720.06.12.0496.83NORTHERN SUMATERA, INDONESIA
2013-12-01 01:24:139.96.5-7.03128.38BANDA SEA
2013-11-25 07:21:1814.86.0-53.87-53.91SOUTH ATLANTIC OCEAN
2013-11-25 06:27:3311.86.9-53.94-55.00FALKLAND ISLANDS REGION
2013-11-25 05:56:5034.06.045.56151.01KURIL ISLANDS
2013-11-23 07:48:32377.06.5-17.10-176.56FIJI ISLANDS REGION
2013-11-19 13:32:5138.06.12.64128.43HALMAHERA, INDONESIA
2013-11-17 09:04:5510.07.8-60.30-46.36SCOTIA SEA
2013-11-16 03:34:319.96.8-60.21-47.11SCOTIA SEA
2013-11-13 23:45:4810.06.1-60.26-47.20SCOTIA SEA
2013-11-13 03:57:3920.05.851.55-179.00ANDREANOF ISLANDS, ALEUTIAN IS.
2013-11-12 07:03:5147.16.654.68162.29NEAR EAST COAST OF KAMCHATKA
2013-11-03 11:03:38532.06.04.66123.35CELEBES SEA
2013-11-02 18:53:4610.16.2-19.17-172.64TONGA ISLANDS REGION
2013-11-02 15:52:4610.06.0-23.64-112.60EASTER ISLAND REGION
2013-10-31 23:03:5610.76.6-30.32-71.73NEAR COAST OF CENTRAL CHILE
2013-10-31 12:02:0810.06.323.59121.44TAIWAN
2013-10-30 02:51:4741.56.3-35.31-73.39OFF COAST OF CENTRAL CHILE
2013-10-29 10:37:559.96.0-61.69154.73BALLENY ISLANDS REGION
2013-10-25 17:10:1935.07.137.16144.66OFF EAST COAST OF HONSHU, JAPAN
2013-10-24 19:25:1022.96.7-58.15-12.80EAST OF SOUTH SANDWICH ISLANDS
2013-10-23 08:23:30160.06.0-23.01-177.14SOUTH OF FIJI ISLANDS
2013-10-19 17:54:561.06.426.27-110.18GULF OF CALIFORNIA
2013-10-16 10:30:5835.06.8-6.45154.93SOLOMON ISLANDS
2013-10-15 00:12:3756.87.29.77124.02MINDANAO, PHILIPPINE ISLANDS
2013-10-12 13:11:5340.06.835.5123.25CRETE
2013-10-12 02:10:2979.46.110.88-62.28NEAR COAST OF VENEZUELA
2013-10-11 21:24:58146.56.3-30.75-178.44KERMADEC ISLANDS, NEW ZEALAND
2013-10-06 21:33:1910.36.2-36.73-97.48WEST CHILE RISE
2013-10-06 16:38:09109.66.012.30141.68SOUTH OF MARIANA ISLANDS
2013-10-04 17:26:1410.06.4-38.5678.45MID-INDIAN RIDGE
2013-10-03 17:46:529.85.555.18167.18KOMANDORSKY ISLANDS REGION
2013-10-01 03:38:21573.06.753.20152.79SEA OF OKHOTSK
2013-09-30 05:55:5541.56.4-30.92-178.32KERMADEC ISLANDS, NEW ZEALAND
2013-09-28 07:34:0714.76.827.2665.59PAKISTAN
2013-09-26 06:46:0410.46.114.48-93.33NEAR COAST OF CHIAPAS, MEXICO
2013-09-25 16:42:4345.77.0-15.85-74.56NEAR COAST OF PERU
2013-09-25 06:51:2410.06.0-49.96-113.74SOUTHERN EAST PACIFIC RISE
2013-09-24 11:29:4815.07.827.0265.55PAKISTAN
2013-09-21 01:39:15549.96.1-7.33120.01FLORES SEA
2013-09-15 16:21:3722.86.051.54-174.79ANDREANOF ISLANDS, ALEUTIAN IS.
2013-09-14 15:42:4620.06.051.44-174.64ANDREANOF ISLANDS, ALEUTIAN IS.
ppPage: 1 of 19pp