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.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Physical Damage0.5% increased Area of Effect1% increased Cooldown Recovery Rate3% reduced wave frequency
5% increased DamageTrap 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 secondsPlace 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: Active Skill Gems
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	65 to 98	0	0
2	31	46	32	13	80 to 120	199345	199345
3	34	50	35	14	98 to 147	285815	485160
4	37	54	37	16	119 to 179	401344	886504
5	40	58	40	17	145 to 217	554379	1440883
6	42	60	42	17	164 to 246	477437	1918320
7	44	63	44	18	186 to 279	583786	2502106
8	46	66	46	18	210 to 316	710359	3212465
9	48	68	48	19	238 to 356	1355511	4567976
10	50	71	49	19	268 to 402	1138877	5706853
11	52	74	51	19	302 to 454	1368233	7075086
12	54	76	53	20	340 to 511	1638338	8713424
13	56	79	55	20	383 to 575	1956648	10670072
14	58	82	57	22	430 to 646	3655184	14325256
15	60	84	59	22	483 to 725	3017327	17342583
16	62	87	60	23	542 to 814	7759995	25102578
17	64	90	62	23	608 to 912	15138193	40240771
18	66	92	64	24	681 to 1022	26083825	66324596
19	68	95	66	24	763 to 1144	62620247	128944843
20	70	98	68	25	853 to 1280	211708088	340652931
21	72	100	70	25	954 to 1431	N/A	N/A
22	74	N/A	N/A	26	1066 to 1599	N/A	N/A
23	76	N/A	N/A	26	1191 to 1786	N/A	N/A
24	78	N/A	N/A	28	1329 to 1994	N/A	N/A
25	80	N/A	N/A	28	1483 to 2224	N/A	N/A
26	82	N/A	N/A	29	1653 to 2480	N/A	N/A
27	84	N/A	N/A	29	1843 to 2764	N/A	N/A
28	86	N/A	N/A	30	2053 to 3079	N/A	N/A
29	88	N/A	N/A	30	2286 to 3429	N/A	N/A
30	90	N/A	N/A	31	2545 to 3817	N/A	N/A
31	91	N/A	N/A	32	2684 to 4026	N/A	N/A
32	92	N/A	N/A	32	2831 to 4247	N/A	N/A
33	93	N/A	N/A	33	2986 to 4479	N/A	N/A
34	94	N/A	N/A	33	3149 to 4723	N/A	N/A
35	95	N/A	N/A	34	3320 to 4981	N/A	N/A
36	96	N/A	N/A	35	3501 to 5251	N/A	N/A
37	97	N/A	N/A	35	3691 to 5536	N/A	N/A
38	98	N/A	N/A	36	3891 to 5836	N/A	N/A
39	99	N/A	N/A	36	4101 to 6152	N/A	N/A
40	100	N/A	N/A	37	4323 to 6484	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 superior level 21 Trap gem with 23% quality	A
8	Dying AnguishDying Anguish8Level 19 Gem Alternate Quality: +19%Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.	Random level 19 gem with 19% alternative quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersQuality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters. Shift click to unstack.	Random superior 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
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
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 superior gem with 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:

Item	Limit	Radius	Stats

Related helmet enchantments

The following helmet enchantments affect Seismic Trap.

Name		Labyrinth	Stats	Spawn Weighting
Enchantment Physical Cascade Additional Cascades 1	75	Eternal Labyrinth	Seismic Trap releases an additional Wave	helmet 75 default 0
Enchantment Physical Cascade Cooldown Speed 1	66	Merciless Labyrinth	Seismic Trap has 10% increased Cooldown Recovery Rate	helmet 75 default 0
Enchantment Physical Cascade Cooldown Speed 2	75	Eternal Labyrinth	Seismic Trap has 15% increased Cooldown Recovery Rate	helmet 75 default 0
Enchantment Physical Cascade Trap Damage 1	66	Merciless Labyrinth	Seismic Trap deals 25% increased Damage	helmet 75 default 0
Enchantment Physical Cascade Trap Damage 2	75	Eternal Labyrinth	Seismic Trap deals 40% increased Damage	helmet 75 default 0
Enchantment Physical Cascade Trap Duration 1	66	Merciless Labyrinth	Seismic Trap has 20% increased Skill Effect Duration	helmet 75 default 0
Enchantment Physical Cascade Trap Duration 2	75	Eternal Labyrinth	Seismic Trap has 30% increased Skill Effect Duration	helmet 75 default 0

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.