Recent Earthquake Teachable Moments

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April 19, 2014 (13:27:59 UTC)

Quake Location

Magnitude 7.5 Papua New Guinea

A magnitude 7.5 earthquake struck off the eastern coast of Papua New Guinea on Saturday, approximately 75 km (47 miles) southwest of Panguna, Bougainville Island.  This earthquake is the latest in an ongoing sequence of seismicity in the same region over the past week.

Teachable Moment Presentation

9 slide Powerpoint presentation (zipped ppt/animation 12.4 MB / pdf 824 kB)

En Español

Presentación en Español (zipped ppt 12.4 MB / pdf 1.02 MB)

IRIS Data Management Center (DMC) Pages


April 18, 2014 (14:27:26 UTC)

Quake Location

Magnitude 7.2 Guerrero, Mexico

A powerful magnitude-7.2 earthquake shook central and southern Mexico on Friday. The earthquake occurred at a depth of 24 km (15 miles).  Its epicenter was in the western state of Guerrero, near the seaside resort of Acapulco.  It collapsed several walls and left large cracks in some facades.  There were no reports of major damage or casualties.

Teachable Moment Presentation

13 slide Powerpoint presentation (zipped ppt/animation 16.9 MB / pdf 1.53 MB)

Animations and Visualizations

Tectonic Setting and Wave Propagation (mp4 3.8 MB / YouTube)

En Español

Presentación en Español (zipped ppt 16.9 MB / pdf 1.7 MB)

IRIS Data Management Center (DMC) Pages


April 12, 2014 (20:14:39 UTC)

Quake Location

Magnitude 7.6/7.4 Solomon Islands

A magnitude 7.6 earthquake struck near the Solomon Islands on Sunday morning; there were no immediate reports of damage. The earthquake was centered 100 km (60 miles) south of Kira Kira, a town on the island of Makira, at a depth of 29 km (18 miles). 

A magnitude 7.4 earthquake occurred less than 24 hours later approximately 20 km to the southwest of the magnitude 7.6 earthquake.

Teachable Moment Presentation

12 slide Powerpoint presentation (zipped ppt/animation 13.1 MB / pdf 1.09 MB)

En Español

Presentación en Español (zipped ppt 13.5 MB / pdf 1.07 MB)

IRIS Data Management Center (DMC) Pages


April 11, 2014 (07:07:21 UTC)

Quake Location

Magnitude 7.1 Papua New Guinea

A magnitude 7.1 earthquake struck off the western coast of Papua New Guinea on Friday, approximately 57 km (35 miles) west of Panguna, Bougainville Island. 

Teachable Moment Presentation

8 slide Powerpoint presentation (zipped ppt/animation 11.5 MB / pdf 765 kB)

En Español

Presentación en Español (zipped ppt 11.5 MB / pdf 752 kB)

IRIS Data Management Center (DMC) Pages


April 3, 2014 (02:43:14 UTC)

Quake Location

Magnitude 7.6 SW of Iquique, Chile

A powerful aftershock struck off northern Chile prompting an evacuation of the coastal area and raising fears of a tsunami.  This magnitude 7.6 earthquake is the largest of a series of aftershocks following a massive and deadly 8.2 magnitude earthquake that hit late Tuesday.  This earthquake was located 19 km (12 miles) south of the port city of Iquique at a depth 40 km (24.9 miles).

Teachable Moment Presentation

10 slide Powerpoint presentation (zipped ppt 19.4 MB / pdf 1.35 MB)

En Español

Presentación en Español (zipped ppt 19.4 MB / pdf 1.34 MB)

IRIS Data Management Center (DMC) Pages


April 1, 2014 (23:46:46 UTC)

Quake Location

Magnitude 8.2 Northwest of Iquique, Chile

An 8.2-magnitude earthquake struck off the coast of northern Chile, generating a local tsunami.  The USGS reported the earthquake was centered 95 km (59 miles) northwest of Iquique at a depth of 20.1km (12.5 miles).

Teachable Moment Presentation

14 slide Powerpoint presentation (zipped ppt/animations 35.4 MB / pdf 1.26 MB)

Animations and Visualizations

MegaThrust Earthquakes (mp4 16.4 MB / YouTube / More Info)
Tectonic Setting and Wave Propagation (mp4 3.89 MB / YouTube)
USArray Ground Motion Visualization (mpeg 11.3 MB / More Info)
Back Projection (mpeg 66.1 kB / More Info)

En Español

Presentación en Español (zipped ppt 35.5 MB / pdf 1.46 MB)

USGS Resources

Earthquake Information

IRIS Data Management Center (DMC) Pages


November 25, 2013 (06:27:33 UTC)

Quake Location

Magnitude 7.0 South Atlantic Ocean

A magnitude 7.0 earthquake occurred 300 km southeast of the Falkland Islands.  There was a M 5.6 earthquake 24 seconds prior to this mainshock and was followed by four aftershocks ranging from M 4.6 to M 5.5.

Teachable Moment Presentation

10 slide Powerpoint presentation (zipped ppt/animation 9.22 MB / pdf 983 kB)

En Español

Presentación en Español (zipped ppt 4.16 MB / pdf 1.07 MB)

USGS Resources

Earthquake Information

IRIS Data Management Center (DMC) Pages


November 17, 2013 (09:04:55 UTC)

Quake Location

Magnitude 7.8 Scotia Sea

A magnitude 7.8 earthquake has occurred in the South Orkney Island region in the Scotia Sea. This earthquake is the latest in a series of moderate-to-large earthquakes to strike this region over the past several days.

Teachable Moment Presentation

11 slide Powerpoint presentation (zipped ppt/animation 7.39 MB / pdf 982 kB)

Animations and Visualizations

USArray Ground Motion Visualization (mpeg 9.2 MB / More Info)

En Español

Presentación en Español (zipped ppt 2.28 MB / pdf 986 kB)

USGS Resources

Earthquake Information

IRIS Data Management Center (DMC) Pages


October 25, 2013 (17:10:16 UTC)

Quake Location

Magnitude 7.1 Off the east coast of Honshu, Japan

A magnitude 7.1 struck early Saturday off Japan's east coast. The quake hit at 2:10 a.m. Tokyo time about 170 miles from Fukushima and was felt in Tokyo, 300 miles away. There were no immediate reports of damage.

Teachable Moment Presentation

9 slide Powerpoint presentation (zipped ppt 3.22 MB / pdf 816 kB)

Animations and Visualizations

USArray Ground Motion Visualization (mpeg 10.3 MB / More Info)

En Español

Presentación en Español (zipped ppt 3.16 MB / pdf 968 kB)

USGS Resources

Earthquake Information


October 15, 2013 (00:12:32 UTC)

Quake Location

Magnitude 7.1 Philippines

A magnitude 7.1 earthquake struck in the southeastern Philippines just after 8 am local time Tuesday morning.  According to the USGS, the quake was centered about 391 miles (629 kilometers) south-southeast of Manila, and its depth was 12 miles (20 kilometers).

Teachable Moment Presentation

UPDATED 8 slide Powerpoint presentation (zipped ppt 3.38 MB / pdf 1.12 MB)

Animations and Visualizations

USArray Ground Motion Visualization (mpeg-4 9.3 MB / More Info)

En Español

Presentación en Español (zipped ppt 3.38 MB / pdf 1.20 MB)

USGS Resources

Earthquake Information


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