Seismic Trap

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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 Damage
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
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Seismic Trap skill icon.pngSeismic Trap inventory icon.png
Drop level: 28
Vendor Offer
1x Scroll Fragment
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemPhysCascadeTrap

Seismic Trap skill screenshot.jpg
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. [1]

Gem level progression

LevelRequired LevelRequired DexterityRequired IntelligenceMana
Exp.Total Exp.
12842291365 to 9800
23146321380 to 120199345199345
33450351498 to 147285815485160
437543716119 to 179401344886504
540584017145 to 2175543791440883
642604217164 to 2464774371918320
744634418186 to 2795837862502106
846664618210 to 3167103593212465
948684819238 to 35613555114567976
1050714919268 to 40211388775706853
1152745119302 to 45413682337075086
1254765320340 to 51116383388713424
1356795520383 to 575195664810670072
1458825722430 to 646365518414325256
1560845922483 to 725301732717342583
1662876023542 to 814775999525102578
1764906223608 to 9121513819340240771
1866926424681 to 10222608382566324596
1968956624763 to 114462620247128944843
2070986825853 to 1280211708088340652931
21721007025954 to 1431N/AN/A
2274N/AN/A261066 to 1599N/AN/A
2376N/AN/A261191 to 1786N/AN/A
2478N/AN/A281329 to 1994N/AN/A
2580N/AN/A281483 to 2224N/AN/A
2682N/AN/A291653 to 2480N/AN/A
2784N/AN/A291843 to 2764N/AN/A
2886N/AN/A302053 to 3079N/AN/A
2988N/AN/A302286 to 3429N/AN/A
3090N/AN/A312545 to 3817N/AN/A
3191N/AN/A322684 to 4026N/AN/A
3292N/AN/A322831 to 4247N/AN/A
3393N/AN/A332986 to 4479N/AN/A
3494N/AN/A333149 to 4723N/AN/A
3595N/AN/A343320 to 4981N/AN/A
3696N/AN/A353501 to 5251N/AN/A
3797N/AN/A353691 to 5536N/AN/A
3898N/AN/A363891 to 5836N/AN/A
3999N/AN/A364101 to 6152N/AN/A
40100N/AN/A374323 to 6484N/AN/A

Item acquisition

Seismic Trap can drop anywhere.


Seismic Trap can be created from the following recipes:

7Deathly DesignsDeathly Designs7Level 21 Trap Gem
Quality: +23%
"The Karui was correct; there is virtue in honouring my ancestors."
Random corrupted superior level 21 Trap gem with 23% qualityA
8Dying 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 qualityA
1Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
Item drops after killing {0} monsters
Quality 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 gemA
6The 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 gemA
13The CataclysmThe Cataclysm13Level 21 Spell Gem
The 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 gemA
3Gemcutter'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% qualityA
1The VoidThe Void1Reach into the Void and claim your prize.Random divination card set exchangeA

Quest reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
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 →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3
Sever the Right Hand
Act 3
Fallen from Grace
Act 6
Lilly Roth

Threshold jewels

The following threshold jewels augment Seismic Trap:


Related helmet enchantments

The following helmet enchantments affect Seismic Trap.

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.LabyrinthStatsSpawn Weighting
Enchantment Physical Cascade Additional Cascades 175Eternal LabyrinthSeismic Trap releases an additional Wavehelmet 75
default 0
Enchantment Physical Cascade Cooldown Speed 166Merciless LabyrinthSeismic Trap has 10% increased Cooldown Recovery Ratehelmet 75
default 0
Enchantment Physical Cascade Cooldown Speed 275Eternal LabyrinthSeismic Trap has 15% increased Cooldown Recovery Ratehelmet 75
default 0
Enchantment Physical Cascade Trap Damage 166Merciless LabyrinthSeismic Trap deals 25% increased Damagehelmet 75
default 0
Enchantment Physical Cascade Trap Damage 275Eternal LabyrinthSeismic Trap deals 40% increased Damagehelmet 75
default 0
Enchantment Physical Cascade Trap Duration 166Merciless LabyrinthSeismic Trap has 20% increased Skill Effect Durationhelmet 75
default 0
Enchantment Physical Cascade Trap Duration 275Eternal LabyrinthSeismic Trap has 30% increased Skill Effect Durationhelmet 75
default 0

Version history

Version Changes
  • 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.
  • 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.
  • 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).
  • Now has alternative gem quality.
  • 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%).
  • Seismic Trap has been added to the game.


ru:Сейсмическая ловушка