diff --git a/lassie/apps/lassie.py b/lassie/apps/lassie.py
index c00f7fbc..84a946f1 100644
--- a/lassie/apps/lassie.py
+++ b/lassie/apps/lassie.py
@@ -81,7 +81,7 @@ def main() -> None:
     features.add_argument("rundir", type=Path, help="path of existing run")
 
     station_corrections = subparsers.add_parser(
-        "station-corrections",
+        "corrections",
         help="analyse station corrections from existing run",
         description="analyze and plot station corrections from a finished run",
     )
@@ -95,14 +95,14 @@ def main() -> None:
 
     serve = subparsers.add_parser(
         "serve",
-        help="serve results from an existing run",
+        help="start webserver and serve results from an existing run",
         description="start a webserver and serve detections and results from a run",
     )
     serve.add_argument("rundir", type=Path, help="rundir to serve")
 
     subparsers.add_parser(
         "clear-cache",
-        help="clear the cached travel times",
+        help="clear the cach directory",
     )
 
     dump_schemas = subparsers.add_parser(
@@ -178,7 +178,7 @@ async def extract() -> None:
 
         asyncio.run(extract())
 
-    elif args.command == "station-corrections":
+    elif args.command == "corrections":
         rundir = Path(args.rundir)
         station_corrections = StationCorrections(rundir=rundir)
         if args.plot:
diff --git a/lassie/models/detection.py b/lassie/models/detection.py
index 541d73cf..c11c486c 100644
--- a/lassie/models/detection.py
+++ b/lassie/models/detection.py
@@ -20,7 +20,7 @@
 from lassie.models.location import Location
 from lassie.models.station import Station, Stations
 from lassie.tracers import RayTracerArrival
-from lassie.utils import PhaseDescription, time_to_path
+from lassie.utils import PhaseDescription, Symbols, time_to_path
 
 if TYPE_CHECKING:
     from pyrocko.squirrel import Response, Squirrel
@@ -449,6 +449,17 @@ def add(self, detection: EventDetection) -> None:
         marker.save_markers(detection.get_pyrocko_markers(), str(markers_file))
 
         self.detections.append(detection)
+        logger.info(
+            "%s detection #%d %s: %.5f°, %.5f°, depth %.1f m, "
+            "border distance %.1f m, semblance %.3f",
+            Symbols.Target,
+            self.n_detections,
+            detection.time,
+            *detection.effective_lat_lon,
+            detection.depth,
+            detection.distance_border,
+            detection.semblance,
+        )
         # This has to happen after the markers are saved
         detection.dump_append(self.rundir, self.n_detections - 1)
 
diff --git a/lassie/models/location.py b/lassie/models/location.py
index eebe15c0..be6efaa5 100644
--- a/lassie/models/location.py
+++ b/lassie/models/location.py
@@ -3,10 +3,11 @@
 import hashlib
 import math
 import struct
-from typing import TYPE_CHECKING, Iterable, Literal, Self, TypeVar
+from typing import TYPE_CHECKING, Iterable, Literal, TypeVar
 
 from pydantic import BaseModel, PrivateAttr
 from pyrocko import orthodrome as od
+from typing_extensions import Self
 
 if TYPE_CHECKING:
     from pathlib import Path
diff --git a/lassie/search/base.py b/lassie/search/base.py
index a63a78e2..69624c6f 100644
--- a/lassie/search/base.py
+++ b/lassie/search/base.py
@@ -22,7 +22,7 @@
 from lassie.station_corrections import StationCorrections
 from lassie.tracers import CakeTracer, ConstantVelocityTracer, RayTracers
 from lassie.tracers.fast_marching import FastMarchingTracer
-from lassie.utils import PhaseDescription, Symbols, alog_call, time_to_path
+from lassie.utils import PhaseDescription, alog_call, time_to_path
 
 if TYPE_CHECKING:
     from pyrocko.trace import Trace
@@ -422,11 +422,6 @@ async def search(
 
             node_idx = (await semblance.maxima_node_idx())[time_idx]
             source_node = octree[node_idx]
-            if not octree.is_node_in_bounds(source_node):
-                logger.info(
-                    "source node is inside octree's absorbing boundary (%.1f m)",
-                    source_node.distance_border,
-                )
             source_location = source_node.as_location()
 
             detection = EventDetection(
@@ -464,15 +459,6 @@ async def search(
                 )
 
             detections.append(detection)
-            logger.info(
-                "%s new detection %s: %.5fE, %.5fN, depth %.1f m, semblance %.3f",
-                Symbols.Target,
-                detection.time,
-                *detection.effective_lat_lon,
-                detection.depth,
-                detection.semblance,
-            )
-
             # detection.plot()
 
         # plot_octree_movie(octree, semblance, file=Path("/tmp/test.mp4"))
diff --git a/lassie/search/squirrel.py b/lassie/search/squirrel.py
index 629b8573..6bdaa8b7 100644
--- a/lassie/search/squirrel.py
+++ b/lassie/search/squirrel.py
@@ -196,7 +196,7 @@ async def scan_squirrel(self) -> None:
                     * (batch.n - batch.i - 1)
                 )
                 logger.info(
-                    "remaining %s, estimated finish at %s",
+                    "remaining time %s, estimated finish at %s",
                     remaining_time,
                     datetime.now() + remaining_time,  # noqa: DTZ005
                 )
diff --git a/lassie/tracers/cake.py b/lassie/tracers/cake.py
index 896e0bdb..4a7535b5 100644
--- a/lassie/tracers/cake.py
+++ b/lassie/tracers/cake.py
@@ -393,7 +393,7 @@ def get_travel_times(self, octree: Octree, stations: Stations) -> np.ndarray:
 
             cache_hits, cache_misses = self._node_lut.get_stats()
             cache_hit_rate = cache_hits / (cache_hits + cache_misses)
-            logger.info(
+            logger.debug(
                 "node LUT cache fill level %.1f%%, cache hit rate %.1f%%",
                 self.lut_fill_level() * 100,
                 cache_hit_rate * 100,
diff --git a/lassie/tracers/fast_marching/fast_marching.py b/lassie/tracers/fast_marching/fast_marching.py
index f02aaac4..04a79ed1 100644
--- a/lassie/tracers/fast_marching/fast_marching.py
+++ b/lassie/tracers/fast_marching/fast_marching.py
@@ -8,7 +8,7 @@
 from concurrent.futures import ThreadPoolExecutor
 from datetime import datetime, timedelta
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, Literal, Self, Sequence
+from typing import TYPE_CHECKING, Any, Literal, Sequence
 
 import numpy as np
 from lru import LRU
@@ -16,6 +16,7 @@
 from pyrocko.modelling import eikonal
 from rich.progress import Progress
 from scipy.interpolate import RegularGridInterpolator
+from typing_extensions import Self
 
 from lassie.models.location import Location
 from lassie.models.station import Station, Stations
@@ -163,7 +164,7 @@ def filename(self) -> str:
         # TODO: Add origin to hash to avoid collisions
         return f"{self.station.pretty_nsl}-{self.velocity_model_hash}.3dtt"
 
-    def get_traveltime_interpolator(self) -> RegularGridInterpolator:
+    def get_travel_time_interpolator(self) -> RegularGridInterpolator:
         if self._interpolator is None:
             self._interpolator = RegularGridInterpolator(
                 (self._east_coords, self._north_coords, self._depth_coords),
@@ -178,7 +179,7 @@ def interpolate_travel_time(
         location: Location,
         method: Literal["nearest", "linear", "cubic"] = "linear",
     ) -> float:
-        interpolator = self.get_traveltime_interpolator()
+        interpolator = self.get_travel_time_interpolator()
         offset = location.offset_to(self.center)
         return interpolator([offset], method=method).astype(float, copy=False)[0]
 
@@ -187,11 +188,19 @@ def interpolate_nodes(
         nodes: Sequence[Node],
         method: Literal["nearest", "linear", "cubic"] = "linear",
     ) -> np.ndarray:
-        interpolator = self.get_traveltime_interpolator()
+        interpolator = self.get_travel_time_interpolator()
 
         coordinates = [node.as_location().offset_to(self.center) for node in nodes]
         return interpolator(coordinates, method=method).astype(float, copy=False)
 
+    def get_meshgrid(self) -> list[np.ndarray]:
+        return np.meshgrid(
+            self._east_coords,
+            self._north_coords,
+            self._depth_coords,
+            indexing="ij",
+        )
+
     def save(self, path: Path) -> Path:
         """Save travel times to a zip file.
 
@@ -221,10 +230,10 @@ def save(self, path: Path) -> Path:
 
     @classmethod
     def load(cls, file: Path) -> Self:
-        """Load 3D travel times from a zip file.
+        """Load 3D travel times from a .3dtt file.
 
         Args:
-            file (Path): path to the zip file containing the travel times
+            file (Path): path to the .3dtt file containing the travel times
 
         Returns:
             Self: 3D travel times
@@ -441,7 +450,7 @@ def get_travel_times(
 
             cache_hits, cache_misses = self._node_lut.get_stats()
             cache_hit_rate = cache_hits / (cache_hits + cache_misses)
-            logger.info(
+            logger.debug(
                 "node LUT cache fill level %.1f%%, cache hit rate %.1f%%",
                 self.lut_fill_level() * 100,
                 cache_hit_rate * 100,
@@ -456,7 +465,7 @@ def fill_lut(self, nodes: Sequence[Node]) -> None:
 
         with Progress() as progress:
             status = progress.add_task(
-                f"interpolating {self.phase} traveltimes for {n_nodes} nodes",
+                f"interpolating {self.phase} travel times for {n_nodes} nodes",
                 total=self._cached_stations.n_stations,
             )
             for station in self._cached_stations:
diff --git a/lassie/tracers/fast_marching/velocity_models.py b/lassie/tracers/fast_marching/velocity_models.py
index 0f2ccc17..ac261592 100644
--- a/lassie/tracers/fast_marching/velocity_models.py
+++ b/lassie/tracers/fast_marching/velocity_models.py
@@ -4,7 +4,7 @@
 import re
 from hashlib import sha1
 from pathlib import Path
-from typing import TYPE_CHECKING, Annotated, Any, Literal, Self, Union
+from typing import TYPE_CHECKING, Annotated, Any, Literal, Union
 
 import numpy as np
 from pydantic import (
@@ -17,6 +17,7 @@
 )
 from pydantic.dataclasses import dataclass
 from scipy.interpolate import RegularGridInterpolator
+from typing_extensions import Self
 
 from lassie.models.location import Location
 
@@ -94,7 +95,10 @@ def hash(self) -> str:
         return self._hash
 
     def get_source_arrival_grid(self, station: Station) -> np.ndarray:
-        times = np.full_like(self._velocity_model, fill_value=-1.0)
+        if not self.is_inside(station):
+            raise ValueError("Station is outside of velocity model.")
+
+        times = np.full_like(self.velocity_model, fill_value=-1.0)
 
         station_offset = station.offset_to(self.center)
         east_idx = np.argmin(np.abs(self._east_coords - station_offset[0]))
@@ -116,6 +120,7 @@ def get_meshgrid(self) -> list[np.ndarray]:
             self._east_coords,
             self._north_coords,
             self._depth_coords,
+            indexing="ij",
         )
 
     def resample(
diff --git a/test/test_fast_marching.py b/test/test_fast_marching.py
index 07bd7571..12f12bd6 100644
--- a/test/test_fast_marching.py
+++ b/test/test_fast_marching.py
@@ -24,7 +24,10 @@
 
 
 def stations_inside(
-    model: VelocityModel3D, nstations: int = 20, seed: int = 0
+    model: VelocityModel3D,
+    nstations: int = 20,
+    seed: int = 0,
+    depth: float | None = None,
 ) -> Stations:
     stations = []
     rng = np.random.RandomState(seed)
@@ -37,7 +40,8 @@ def stations_inside(
             elevation=model.center.elevation,
             north_shift=model.center.north_shift + rng.uniform(*model.north_bounds),
             east_shift=model.center.east_shift + rng.uniform(*model.east_bounds),
-            depth=model.center.depth + rng.uniform(*model.depth_bounds),
+            depth=model.center.depth
+            + (depth if depth is not None else rng.uniform(*model.depth_bounds)),
         )
         stations.append(station)
     return Stations(stations=stations)
@@ -174,3 +178,45 @@ def test_non_lin_loc_model(
     )
     fig.colorbar(cmap)
     plt.show()
+
+
+@pytest.mark.plot
+@pytest.mark.asyncio
+async def test_non_lin_loc_travel_times(data_dir: Path, octree: Octree) -> None:
+    import matplotlib.pyplot as plt
+
+    header_file = data_dir / "FORGE_3D_5_large.P.mod.hdr"
+
+    tracer = FastMarchingTracer(
+        phase="fm:P",
+        velocity_model=NonLinLocVelocityModel(
+            header_file=header_file,
+            grid_spacing=100.0,
+        ),
+    )
+    model_3d = tracer.velocity_model.get_model(octree)
+    octree = octree_cover(model_3d)
+    stations = stations_inside(model_3d, depth=0.0)
+    await tracer.prepare(octree, stations)
+
+    volume = tracer.get_travel_time_volume(stations.stations[0])
+
+    # 3d figure of velocity model
+    fig = plt.figure()
+    ax = fig.add_subplot(projection="3d")
+    coords = volume.get_meshgrid()
+    print(coords[0].shape)
+
+    cmap = ax.scatter(
+        coords[0],
+        coords[1],
+        coords[2],
+        c=volume.travel_times.ravel(),
+        alpha=0.2,
+    )
+
+    station_offet = volume.station.offset_to(volume.center)
+    print(station_offet)
+    ax.scatter(*station_offet, s=100, c="r")
+    fig.colorbar(cmap)
+    plt.show()