•March 11 (Fri). Earthquake came. No injured persons for J-PARC– In the middle of lecture to 41 visitors, given by a J-PARC staff member, the entire ceiling fell
down. He instructed visitors to hide under the desk immediately. No injures to anyone.

•March 12 (Sat).
– No Tsunami effects.
– All buildings looked OK, due to many underpins underneath the buildings.
– However, all roads around the buildings and the surrounding utilities had severe damages.

•March 13 (Sun). All non-Japanese users were sent to safe places or to the airport.
– Uses Office worked coherently. KEK Bus, etc. were used to send users to Tsukuba, Narita.

•March 17 (Thu). Inspection of all buildings, utilities, and facilities for J-PARC– Photos are displayed in what follows. No electricity. Very limited inspection.
– Out of two major transformers, one for Linac was inclined, whereas other for MR was OK.
On March 23 it turned out that Linac transformer is recoverable, though.
– In order to avoid Secondary Damages, we need electricity for lights and for pumping water.
– On March 24, we detected 10 cm deep water in Linac.
– On March 25, finally, the motor-driven generator arrived, and pumping Linac water started.
Water level was substantially reduced by March 27.

•••

On March 22 (Tue), JLAN for network restarted its operation.
Water became available on March 24 (Thu) for office. No air conditions yet.
On March 29 (Tue), inspections for buildings and accelerator tunnels will start.

Entrance for Linac

About 1.5 m drop as seen above, over a wide area.
Electric wires and water pipes were all damaged.

Road in front of Linac

Serious cracks on the road. This is a typical one
and can be seen all over the J-PARC area.

Electric Power Supply for Linac

Side buildings were severely damaged (due to less number of underpins),
whereas central area for Linac had no damages including klystrons.

Inside Linac Tunnel

Concerning the central area of Linac, no serious damages were seen bylooking from outside. As of March 17, 1 cm deep water was on the floor.

Road around 3 GeV

Wavy road. Bump in the middle means that beam pipe isunderneath it. Both sides of the bump were sinking.

3 GeV Electric Power Supply

Leaning toward the left side. Around the place marked on red
about 100 cables are there, which are all distorted.

Condenser Bank for 3 GeV

Condenser bank was waved. Cables were distortedwith heavy weight on them.

３ＧｅＶ Ｍａｉｎ Ｒｉｎｇ

No significant damages.

50 GeV The Second Entrance Area

Over the region of 1 m by 10 m
about 50 cm dropped.

50 GeV Main Ring (1)Although some distortion is observed for cable rack, theaccelerator itself seems OK as viewed only from this area.

50 GeV Main Ring (2)No damages are observed from outside alone.

50 GeV Side NotchA few cm deep water was accumulated. Need to pump thewater as soon as possible. Humidity was very high.

Main Control Room

Main Control Room was in a reasonable shape.

Materials and Science Area (MLF) (1)Sinking
g caused a sharp bend in thepiping system though the building(upper).
Helium tank is leaning toward left
(right). Front is nitrogen tank.

Materials and Science Area (MLF) (2)West side road from MLF. About 1.5 m sinking was observed.

MLF First Hall and Second HallInterior part of the Hall 1 and Hall 2 are very healthy, thanks tomany underpins for the building.

MLF West-side Added Building

30 cm dropped for the west-side added building (left). BL18,BL19 and BL20
were damaged. Vertical parallel lines are now leaning toward the left (right).

MLF East-side Added Building

30 cm dropped for the east-side added building (left). BL08 and BL09 weredamaged. For BL08 all mirrors for the optical guide were broken (right).

3NBT (Beam Transport from 3GeV)

3NBT itself seems OK. However, on the joint portion,
there was a crack due to displacement.

Neutrino: Air ConditioningNeutrino: Beam Dump Area

South side (viewed from upstream to downstream)Neutrino: Primary Beam Transport

No significant damages from outside.

Neutrino: On Site Detector

No significant damages from outside. About 1 cm deep water at the bottom.

Hadron Outside Area (1)About 30 cm drop all over the places. Gas storage stand isfloating up on the air.

Hadron Outside Area (2)Again about 30 cm drop.

Outer Wall for HadronNorth sideSouth sideThis side is for the extension inthe future
future. The biggest
damages in the Hadron Hall.

Hadron Experimental HallDue to many underpins, hadron hall looks OK.
No significant damages were observed.

Major Power Transformer for Linac, etc.

About 10 degree leaned. At the beginning we were told that it would notwork at least half a year. Later it turned out that it would work immediately.

Lecture to the Visitors

The lecture was given in the front desk. Then, the entire ceiling was dropped.
Immediately, instructed to hide under the desk. No injuries. Place is JRR-1.