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Moderate mag. 5.6 earthquake - 15 Km al oeste de Puerto Armuelles, Panamá (Panama) on Friday, 4 September 2020

Moderate mag. 5.6 earthquake  - 15 Km al oeste de Puerto Armuelles, Panamá (Panama) on Friday, 4 September 2020
4 Sep 17:49 UTC: First to report: INETER after 4 minutes.
Sep 4 17:56: Magnitude recalculated from 5.6 to 5.5.
Hypocenter depth recalculated from 2.0 to 8.0 km.
Sep 4 18:00: Magnitude recalculated from 5.5 to 5.6.
Hypocenter depth recalculated from 8.0 to 6.0 km.
Update Fri, 4 Sep 2020, 21:50
More earthquakes hit the Costa Rica-Panama border area
Today's earthquakes in the Costa Rica - Panama border region
Today's earthquakes in the Costa Rica - Panama border region
A series of quakes hit the southern border area between Costa Rica and Panama today, the strongest two quakes of magnitudes of around 5.5 and 5.0 at 11:45 and 11:48 local time.
The epicenters were 15 km west of Puerto Armuelles (Panama) and 4 km north of Laurel in Costa Rica.
Both quakes were widely felt in up to 200 km distance. Strong shaking was felt in areas close (within 20-30 km) to the epicenter, while light to very weak shaking could be felt in a much wider area.
So far, there have been no reports of significant damage or injuries related to the earthquakes.
In addition, 8 aftershocks of magnitudes between 3.3 and 4.6 have been registered in the area, all felt as well.
The obvious concern is whether the cluster of quakes is going to continue and lead up to a larger quake or if most of the seismic tension has been released.
Costa Rica and Panama are in one of the seismically most active parts of the world, as they are just east of the tectonic boundary where the oceanic Cocos Plate is subducting (descending) underneath the Caribbean Plate, at a rate of 75 mm per year. The collision between the two constantly generates stress along the margin, which is being released in many small and sometimes larger earthquakes of magnitudes 6-7. One of the largest quakes in the area in recent decades was a magnitude 7.1 on 3 April 1983, at about 50 km to the northwest in Costa Rica.
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Earthquake data:

Date & time: Friday, 4 September 2020 17:45 UTC
Local time at epicenter: 2020-09-04 11:45:20
Magnitude: 5.6
Depth: 6.0 km
Epicenter latitude / longitude: 8.288°N / 82.992°W (Panama)
Nearest volcano: Baru (58 km / 36 mi)
Nearby towns and cities:
14 km (9 mi) W of Puerto Armuelles (pop: 11,700)
38 km (23 mi) SE of Golfito (pop: 6,800)
39 km (25 mi) S of Corredor (pop: 7,100)
64 km (40 mi) SW of David (pop: 82,000)
189 km (118 mi) S of Limón (pop: 63,100)
197 km (123 mi) SE of Paraíso (pop: 39,700)
Primary data source: INETER
Estimated released energy: 1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 tons of TNT or 0.2 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Fri, 4 Sep 17:45 UTCM 5.6 / 6 km15 Km al oeste de Puerto Armuelles, Panamá (Panama)INETER
Fri, 4 Sep 17:45 UTCM 5.5 / 10 kmCosta Rica (Panama)GFZ
Fri, 4 Sep 17:45 UTCM 5.6 / 15 kmCosta Rica (Panama)EMSC
Fri, 4 Sep 17:45 UTCM 5.7 / 10 kmPanama-Costa Rica Border RegionGeoAu
Fri, 4 Sep 17:46 UTCM 5.3 / 10 km1 km N of Manaca Norte, PanamaUSGS
Fri, 4 Sep 17:46 UTCM 5.0 / 3 km6 km al Oeste de Puerto Armuelles, Panama.RSN
Fri, 4 Sep 17:45 UTCM 5.4 / 94 km New ZealandBMKG
Fri, 4 Sep 17:45 UTCM 5.6 / 8.7 km12 Km WSW of Finca Blanco, PanamaUSGS
Fri, 4 Sep 17:46 UTCM 5.3 / 10 km1 Km N of Manaca Norte, PanamaUSGS
Fri, 4 Sep 17:45 UTCM 5.4 / 94 km New ZealandBMKG

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (modified Mercalli) scale.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own experience report!
uvita, costa rica (126.3 km NW of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 10-15 s : three separate shakes about one minute apart from each other, lasting about 10 seconds each. sitting on a bar stool, felt side to side gentle swaying.
San Salvador de Barü (195.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging : I was laying down. Just like rocking the cradle, sideways. San Salvador de Barú, Costa Rica. | One user found this interesting.
Dominical Costa Rica (142.6 km NW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : It came several times. Very weak shaking. Could see the pool water rock back and forth slightly. | One user found this interesting.
63.7 km ENE of epicenter [Map] / Strong shaking (MMI VI) : Laying in bed, bed started to shake, t. V. Started shaking, dogs started barking, then after shocks. | One user found this interesting. (reported through our app)
Heredia, Costa Rica (226.3 km NW of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 10-15 s : Movimiento leve | One user found this interesting. (reported through our app)
14.2 km E of epicenter [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging
La Hierba, Cocal Amarillo, Pavones (19.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
48 km ENE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Gomez (37.3 km NE of epicenter) [Map] / Moderate shaking (MMI V) / 15-20 s
Las lomas (68.4 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
64.4 km ENE of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)
46.7 km E of epicenter [Map] / Light shaking (MMI IV) / vibration and rolling / 2-5 s
65.1 km ENE of epicenter [Map] / Light shaking (MMI IV)
75.8 km NE of epicenter [Map] / Very weak shaking (MMI II)
Corazon de Jesus, Puerto Armuelles Panama (17.4 km E of epicenter) [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 20-30 s (reported through our app)
Finca morpho, osa peninsula (35.5 km WNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating
132.1 km NW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Puerto Armuelles / Moderate shaking (MMI V) / both vertical and horizontal swinging / 5-10 s : Moderate shaking. Both directions. It did NOT move the refrigerator. 2 about the same size about 2 minutes apart. 4 more, much smaller within 15 minutes of the 1st. | 3 users found this interesting.
Puerto Plon / Light shaking (MMI IV) / 5-10 s : There were a number of different tremors in a period of 10-15 minutes. some rolling and 1 pretty strong shaking, and 1 very sudden and harsh jerking one. This event had a quite different feel from the other recent ones that we have had in our area. | 3 users found this interesting.
Penonomé, Cocle / Weak shaking (MMI III) : Estaba en el trabajo y un compañero me preguntó si estaba temblando. Puse atención y era cierto. Pero otras personas no lo sintieron. Todo está en calma. | One user found this interesting.
San Isidro del General, Perez Zeledon / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Felt this one - all my wine bottles swaying and rattling. Felt the next one a few minutes later. A little concerned after a good shaking a few days ago.
Puerto Armuelles Panama / Moderate shaking (MMI V) : My cameras went off like there was motion due to trees swaying. | One user found this interesting.
Puerto Armuelles, Panama / Moderate shaking (MMI V) : With what felt like a smaller one right behind it | One user found this interesting.
Las Lomas / Moderate shaking (MMI V) : Doors swaying , came in two waves 1st stronger then 2nd total time shaking 4 minutes | One user found this interesting.
Playa Zancudo / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : There were also 2 aftershocks. | One user found this interesting.
Puerto Armuelles Panama / Moderate shaking (MMI V) : My cameras went off like there was motion due to trees swaying.
Coco beach about about 10 km west of puerto / Moderate shaking (MMI V)
Boquete Canyon Village / Light shaking (MMI IV)
Cero Punta / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
David, Chiriquí, Panamá / Weak shaking (MMI III)
Boquerón Panamá / Moderate shaking (MMI V) / 1-2 s
(Costa Rica, 49 km NW of epicenter) : Long and soft swaing but lasted for quite a while. Movimientos largos y suaves que duraran como 3 minutos. | 3 users found this interesting. (reported through EMSC)
Uvita (Costa Rica, 123 km NW of epicenter) : Felt like 3 different small ones | 2 users found this interesting. (reported through EMSC)
David (Panama, 61 km E of epicenter) : Muy fuerte | One user found this interesting. (reported through EMSC)
David (Panama, 63 km E of epicenter) : Lasted over a minute | One user found this interesting. (reported through EMSC)
David (Panama, 63 km E of epicenter) : David Chiriquí Panamá | One user found this interesting. (reported through EMSC)
Toabré (Panama, 297 km E of epicenter) : Long slow rolling over two minutes in David, Panama | One user found this interesting. (reported through EMSC)
David (Panama, 63 km E of epicenter) : Se sintió, breve,pero movió lámparas y muebles levemente. | One user found this interesting. (reported through EMSC)
San Pablo Viejo Arriba (Panama, 57 km E of epicenter) : San Pablo Viejo Arriba. Fixtures swayed. Came in 2 rolling waves about 5 minutes apart. Lasted about 2-3 minutes | One user found this interesting. (reported through EMSC)

Aftershocks of the 5.6 quake: 15 Km al oeste de Puerto Armuelles, Panamá (Panama), 4 Sep 2020 17h45

Show info about this
List of recorded aftershocks, latest first (63 quakes):
  • 27 Sep 2020 00:59 UTC
    | M 2.5 |
    7 km (4.3 mi) depth
    |
    14 km (9 mi) distance
    | INETER | Details
  • 27 Sep 2020 00:59 UTC
    | M 2.9 |
    15 km (9.3 mi) depth
    |
    19 km (12 mi) distance
    | RSN | Details
  • 26 Sep 2020 07:27 UTC
    | M 4.8 |
    12 km (7.5 mi) depth
    |
    31 km (19 mi) distance
    | INETER | Details
  • 25 Sep 2020 23:37 UTC
    | M 4.4 |
    8 km (5 mi) depth
    |
    12 km (7 mi) distance
    | INETER | Details
  • 25 Sep 2020 18:09 UTC
    | M 4.5 |
    9 km (5.6 mi) depth
    |
    5 km (3 mi) distance
    | RSN | Details
  • 25 Sep 2020 06:35 UTC
    | M 3.4 |
    3 km (1.9 mi) depth
    |
    7 km (5 mi) distance
    | INETER | Details
  • 25 Sep 2020 06:09 UTC
    | M 4.6 |
    1 km (0.6 mi) depth
    |
    8 km (5 mi) distance
    | INETER | Details
  • 24 Sep 2020 09:45 UTC
    | M 3.0 |
    20 km (12.4 mi) depth
    |
    26 km (16 mi) distance
    | RSN | Details
  • 22 Sep 2020 07:49 UTC
    | M 3.4 |
    3 km (1.9 mi) depth
    |
    28 km (17 mi) distance
    | RSN | Details
  • 13 Sep 2020 14:28 UTC
    | M 4.3 |
    4 km (2.5 mi) depth
    |
    3 km (2 mi) distance
    | RSN | Details
  • 13 Sep 2020 08:19 UTC
    | M 3.9 |
    3 km (1.9 mi) depth
    |
    3 km (2 mi) distance
    | RSN | Details
  • 13 Sep 2020 07:24 UTC
    | M 4.7 |
    12 km (7.5 mi) depth
    |
    31 km (19 mi) distance
    | INETER | Details
  • 13 Sep 2020 06:19 UTC
    | M 3.6 |
    3 km (1.9 mi) depth
    |
    21 km (13 mi) distance
    | RSN | Details
  • 12 Sep 2020 18:19 UTC
    | M 3.6 |
    3 km (1.9 mi) depth
    |
    21 km (13 mi) distance
    | EMSC | Details
  • 11 Sep 2020 14:13 UTC
    | M 3.6 |
    3 km (1.9 mi) depth
    |
    30 km (19 mi) distance
    | RSN | Details
  • 10 Sep 2020 16:39 UTC
    | M 4.2 |
    3 km (1.9 mi) depth
    |
    4 km (3 mi) distance
    | RSN | Details
  • Show all

Map of aftershocks

Significant earlier earthquakes in the same area since 1900

Moderate mag. 5.6 earthquake - 15 Km al oeste de Puerto Armuelles, Panamá (Panama) on Friday, 4 September 2020

Map of earlier quakes

 

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