diff --git a/examples/quake.html b/examples/quake.html
index cb6e6c3..d25787b 100644
--- a/examples/quake.html
+++ b/examples/quake.html
@@ -103,8 +103,8 @@
   // minimum magnitude in our data set is 2.5.
   var colors = d3.scale.pow()
     .exponent(3)
-    .domain([2, 6, 10])
-      .range(['yellow', 'orange', 'red']);
+    .domain([2, 4, 6, 8, 10])
+      .range(['white', 'yellow', 'orange', 'red', 'purple']);
   // Also create a scale for mapping magnitudes to ping angle sizes
   var angles = d3.scale.pow()
     .exponent(3)
diff --git a/examples/quake/quake.js b/examples/quake/quake.js
index 88ccff3..4a0a8e8 100644
--- a/examples/quake/quake.js
+++ b/examples/quake/quake.js
@@ -33,8 +33,8 @@
   // minimum magnitude in our data set is 2.5.
   var colors = d3.scale.pow()
     .exponent(3)
-    .domain([2, 6, 10])
-      .range(['yellow', 'orange', 'red']);
+    .domain([2, 4, 6, 8, 10])
+      .range(['white', 'yellow', 'orange', 'red', 'purple']);
   // Also create a scale for mapping magnitudes to ping angle sizes
   var angles = d3.scale.pow()
     .exponent(3)