diff --git a/volcanic/grid/non-summit/shallow/gmm-config.json b/volcanic/grid/non-summit/shallow/gmm-config.json
deleted file mode 100644
index 307d377683b14eb6f53199cc487ecabe7caa0ad4..0000000000000000000000000000000000000000
--- a/volcanic/grid/non-summit/shallow/gmm-config.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "max-distance": 300.0
-}
diff --git a/volcanic/grid/non-summit/shallow/gmm-tree.json b/volcanic/grid/non-summit/shallow/gmm-tree.json
deleted file mode 100644
index a8995241b179309c5ffb880a6fb9646321b4a6d6..0000000000000000000000000000000000000000
--- a/volcanic/grid/non-summit/shallow/gmm-tree.json
+++ /dev/null
@@ -1,7 +0,0 @@
-[
-  { "id": "ATKINSON_10", "weight": 0.2 },
-  { "id": "ASK_14", "weight": 0.2 },
-  { "id": "BSSA_14", "weight": 0.2 },
-  { "id": "CB_14", "weight": 0.2 },
-  { "id": "CY_14", "weight": 0.2 }
-]
diff --git a/volcanic/grid/summit/shallow/gmm-config.json b/volcanic/grid/summit/shallow/gmm-config.json
deleted file mode 100644
index 307d377683b14eb6f53199cc487ecabe7caa0ad4..0000000000000000000000000000000000000000
--- a/volcanic/grid/summit/shallow/gmm-config.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "max-distance": 300.0
-}
diff --git a/volcanic/grid/summit/shallow/gmm-tree.json b/volcanic/grid/summit/shallow/gmm-tree.json
deleted file mode 100644
index a8995241b179309c5ffb880a6fb9646321b4a6d6..0000000000000000000000000000000000000000
--- a/volcanic/grid/summit/shallow/gmm-tree.json
+++ /dev/null
@@ -1,7 +0,0 @@
-[
-  { "id": "ATKINSON_10", "weight": 0.2 },
-  { "id": "ASK_14", "weight": 0.2 },
-  { "id": "BSSA_14", "weight": 0.2 },
-  { "id": "CB_14", "weight": 0.2 },
-  { "id": "CY_14", "weight": 0.2 }
-]