The earthquake was centered in Nikolski at a depth of 35.2 kilometers (about 22 miles). The USGS said it received zero ...

Record-low winter sea ice in the Arctic this year adds to a continued trend of decreasing seasonal sea ice and an increase in ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. Other ...