Seismic Trap

Seismic TrapTrap, Spell, Duration, AoE, Physical
Level: (1-20)
Cost: (13-25) Mana
Cooldown Time: 8.00 sec
Can Store 3 Use(s)
Cast Time: 1.00 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 190%Requires Level 28Throws a trap which, once triggered, repeatedly releases a number of waves for a duration. Each wave deals damage in a series of small bursts in a line, ending with a larger burst. Modifiers to trap throwing speed affects how frequently it releases waves.Trap lasts 4 seconds
Base duration is 3.5 seconds
Deals (65-853) to (98-1280) Physical Damage
Releases 5 waves
Releases waves every 0.9 seconds

Additional Effects From 1-20% Quality:
1% increased Physical Damage0.5% increased Area of Effect1% increased Cooldown Recovery Rate3% reduced wave frequency
5% increased DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop level: 28Vendor Offer
1x Scroll FragmentMetadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gems/SkillGemPhysCascadeTrap

Seismic Trap is a spell skill that throws a trap when activated, releases multiple shockwaves that deal physical damage for its duration.

Skill functions and interactions

Once the trap is triggered, it will spawn a seismic device in its triggered location. This device releases several waves every 0.9 seconds.

You can improve the DPS (damage per second) in different ways:

• Releases waves every 0.9 seconds: Increasing trap throwing speed reduces the delay between waves, improving DPS.
• Base duration is 3.5 seconds: Increasing duration increases the total number of waves per seismic trap (improving the total potential DPS per trap).
• Increasing area of effect increases the radius of each wave, making it possible to overlap more waves.

Because the seismic device spawns waves around it, you can maximize overlap (and therefore, DPS) by throwing the traps around the mob instead of throwing them at the mob's feet.

However, this changes with enough AoE.

Gem level progression

Level				Mana Cost	Physical Damage	Exp.	Total Exp.
1	28	42	29	13	49 to 74	0	0
2	31	46	32	13	61 to 91	199345	199345
3	34	50	35	14	74 to 111	285815	485160
4	37	54	37	16	90 to 135	401344	886504
5	40	58	40	17	109 to 164	554379	1440883
6	42	60	42	17	124 to 186	477437	1918320
7	44	63	44	18	141 to 211	583786	2502106
8	46	66	46	18	159 to 238	710359	3212465
9	48	68	48	19	180 to 269	1355511	4567976
10	50	71	49	19	203 to 304	1138877	5706853
11	52	74	51	19	229 to 343	1368233	7075086
12	54	76	53	20	257 to 386	1638338	8713424
13	56	79	55	20	289 to 434	1956648	10670072
14	58	82	57	22	325 to 488	3655184	14325256
15	60	84	59	22	365 to 548	3017327	17342583
16	62	87	60	23	410 to 615	7759995	25102578
17	64	90	62	23	460 to 689	15138193	40240771
18	66	92	64	24	515 to 772	26083825	66324596
19	68	95	66	24	576 to 865	62620247	128944843
20	70	98	68	25	645 to 967	211708088	340652931
21	72	100	70	25	721 to 1082	N/A	N/A
22	74	N/A	N/A	26	806 to 1209	N/A	N/A
23	76	N/A	N/A	26	900 to 1350	N/A	N/A
24	78	N/A	N/A	28	1005 to 1507	N/A	N/A
25	80	N/A	N/A	28	1121 to 1681	N/A	N/A
26	82	N/A	N/A	29	1250 to 1875	N/A	N/A
27	84	N/A	N/A	29	1393 to 2089	N/A	N/A
28	86	N/A	N/A	30	1552 to 2327	N/A	N/A
29	88	N/A	N/A	30	1728 to 2592	N/A	N/A
30	90	N/A	N/A	31	1923 to 2885	N/A	N/A
31	91	N/A	N/A	32	2029 to 3043	N/A	N/A
32	92	N/A	N/A	32	2140 to 3210	N/A	N/A
33	93	N/A	N/A	33	2257 to 3385	N/A	N/A
34	94	N/A	N/A	33	2380 to 3570	N/A	N/A
35	95	N/A	N/A	34	2510 to 3764	N/A	N/A
36	96	N/A	N/A	35	2646 to 3969	N/A	N/A
37	97	N/A	N/A	35	2790 to 4184	N/A	N/A
38	98	N/A	N/A	36	2941 to 4411	N/A	N/A
39	99	N/A	N/A	36	3100 to 4650	N/A	N/A
40	100	N/A	N/A	37	3267 to 4901	N/A	N/A

Item acquisition

Seismic Trap can drop anywhere.

Recipes

Seismic Trap can be created from the following recipes:

Amount	Part	Description	Meta
7	Deathly DesignsDeathly Designs7Level 21 Trap Gem Quality: +23% Corrupted"The Karui was correct; there is virtue in honouring my ancestors."	Random corrupted level 21 Trap gem with 23% quality	A
13	The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.	Random corrupted level 21 Spell gem	A
6	The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox." - Ezomyte Proverb	Random level 20 gem	A
3	Gemcutter's PromiseGemcutter's Promise3Gem Quality: +20%"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter	Random gem with 20% quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.	Random gem with 1–20% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

Quest reward

This item is given as a quest reward for the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Sever the Right Hand Act 3	✗	✓	✗	✗	✗	✗	✗

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
A Fixture of Fate Act 3 Siosa	✓
Sever the Right Hand Act 3 Clarissa	✓	✓	✗	✗	✗	✗	✓
Fallen from Grace Act 6 Lilly Roth	✓

Threshold jewels

The following threshold jewels augment Seismic Trap:

Note that the jewels may be drop disabled and only be found in the permanent leagues as legacy items.

Item	Limit	Radius	Stats	Drop Enabled

Related helmet enchantments

The following helmet enchantments affect Seismic Trap.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

Name		Labyrinth	Stats	Spawn Weighting
Enchantment Physical Cascade Additional Cascades 1	75	Eternal Labyrinth	Seismic Trap releases an additional Wave	helmet 75
Enchantment Physical Cascade Cooldown Speed 1	66	Merciless Labyrinth	Seismic Trap has 10% increased Cooldown Recovery Rate	helmet 75
Enchantment Physical Cascade Cooldown Speed 2	75	Eternal Labyrinth	Seismic Trap has 15% increased Cooldown Recovery Rate	helmet 75
Enchantment Physical Cascade Trap Damage 1	66	Merciless Labyrinth	Seismic Trap deals 25% increased Damage	helmet 75
Enchantment Physical Cascade Trap Damage 2	75	Eternal Labyrinth	Seismic Trap deals 40% increased Damage	helmet 75
Enchantment Physical Cascade Trap Duration 1	66	Merciless Labyrinth	Seismic Trap has 20% increased Skill Effect Duration	helmet 75
Enchantment Physical Cascade Trap Duration 2	75	Eternal Labyrinth	Seismic Trap has 30% increased Skill Effect Duration	helmet 75

Version history

Version	Changes
3.17.0	Made modifiers to Area of Effect apply to the area Seismic Trap's bursts can target at a ratio. This will slightly improve the area coverage of the skill while lowering the damage growth from increases to Area of Effect without removing their damage benefit entirely.
3.15.0	Now deals 65 to 98 Physical Damage at gem level 1 (previously 47 to 70), up to 853 to 1280 at gem level 20 (previously 610 to 914). The small bursts now have a radius of 9 (previously 7). The large bursts now have a radius of 18 (previously 12). Wave frequency now scales with Increases and Reductions to Trap Throwing Speed instead of Cast Speed.
3.13.0	Now has an added damage effectiveness of 140% (from 120%). Now deals 47 to 70 physical damage at gem level 1 (unchanged), up to 610 to 914 at gem level 20 (from 531 to 796).
3.12.0	Now has alternative gem quality.
3.6.0	Now deals 47 to 70 Physical damage at gem level 1 (from 42 to 64) and 531 to 796 Physical damage at gem level 20 (from 462 to 693). Now has an added damage effectiveness of 120% (from 100%).
3.3.0	Seismic Trap has been added to the game.