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.Deals (46-597) to (68-896) Physical Damage
Trap lasts 4 seconds
Base duration is 3.50 seconds
Releases waves every 0.9 seconds
Releases 5 waves

Additional Effects per 1% Quality:
1% increased Physical Damage0.5% increased Area of Effect1% increased Cooldown Recovery Rate3% reduced wave frequency
5% increased Damage
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Drop level: 28
Vendor Offer
1x Scroll Fragment
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. [1]

Gem level progression

LevelRequired LevelRequired DexterityRequired IntelligenceMana
Exp.Total Exp.
12842291346 to 6800
23146321356 to 84199345199345
33450351469 to 103285815485160
43754371684 to 125401344886504
540584017101 to 1525543791440883
642604217115 to 1724774371918320
744634418130 to 1955837862502106
846664618147 to 2217103593212465
948684819166 to 25013555114567976
1050714919188 to 28211388775706853
1152745119212 to 31713682337075086
1254765320238 to 35716383388713424
1356795520268 to 402195664810670072
1458825722301 to 452365518414325256
1560845922338 to 508301732717342583
1662876023380 to 570775999525102578
1764906223426 to 6391513819340240771
1866926424477 to 7152608382566324596
1968956624534 to 80162620247128944843
2070986825597 to 896211708088340652931
21721007025668 to 1002N/AN/A
2274N/AN/A26746 to 1120N/AN/A
2376N/AN/A26834 to 1250N/AN/A
2478N/AN/A28930 to 1396N/AN/A
2580N/AN/A281038 to 1557N/AN/A
2682N/AN/A291157 to 1736N/AN/A
2784N/AN/A291290 to 1935N/AN/A
2886N/AN/A301437 to 2156N/AN/A
2988N/AN/A301600 to 2400N/AN/A
3090N/AN/A311781 to 2672N/AN/A
3191N/AN/A321879 to 2818N/AN/A
3292N/AN/A321982 to 2973N/AN/A
3393N/AN/A332090 to 3135N/AN/A
3494N/AN/A332204 to 3306N/AN/A
3595N/AN/A342324 to 3486N/AN/A
3696N/AN/A352451 to 3676N/AN/A
3797N/AN/A352584 to 3875N/AN/A
3898N/AN/A362724 to 4085N/AN/A
3999N/AN/A362871 to 4306N/AN/A
40100N/AN/A373026 to 4539N/AN/A

Gem quality

TypeStats (per 1% quality)Weight
Superior1% increased Physical Damage50
Anomalous0.5% increased Area of Effect100
Divergent1% increased Cooldown Recovery Rate100
Phantasmal3% reduced wave frequency
5% increased Damage

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 level 21 Trap gem with 23% qualityA
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
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
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
8The HookThe Hook8Level 21 Gem
Alternate Quality: +23%
Every obsession began with a single, innocent taste.
Random corrupted level 21 gem with 23% alternative qualityA
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 gem with 20% qualityA
1Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
Item drops after killing {0} monsters
Right 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 gem with 1–20% 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

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
Enchantment Physical Cascade Cooldown Speed 166Merciless LabyrinthSeismic Trap has 10% increased Cooldown Recovery Ratehelmet 75
Enchantment Physical Cascade Cooldown Speed 275Eternal LabyrinthSeismic Trap has 15% increased Cooldown Recovery Ratehelmet 75
Enchantment Physical Cascade Trap Damage 166Merciless LabyrinthSeismic Trap deals 25% increased Damagehelmet 75
Enchantment Physical Cascade Trap Damage 275Eternal LabyrinthSeismic Trap deals 40% increased Damagehelmet 75
Enchantment Physical Cascade Trap Duration 166Merciless LabyrinthSeismic Trap has 20% increased Skill Effect Durationhelmet 75
Enchantment Physical Cascade Trap Duration 275Eternal LabyrinthSeismic Trap has 30% increased Skill Effect Durationhelmet 75

Version history

Version Changes
  • Now deals 46 to 68 Physical Damage at gem level 1 (previously 65 to 98), up to 597 to 896 at gem level 20 (previously 853 to 1280).
  • 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