Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 08-12-2020 and time 18:55:15 (Italy) in region 6 km N Fossa (AQ)

A magnitude ML 2.0 earthquake occured in region: 6 km N Fossa (AQ), on

  • 08-12-2020 17:55:15 (UTC)
  • 08-12-2020 18:55:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3470, 13.4760 at 17 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fossa AQ 6 721 721
Poggio Picenze AQ 6 1136 1857
L'Aquila AQ 6 69753 71610
Ocre AQ 7 1167 72777
Sant'Eusanio Forconese AQ 8 394 73171
San Demetrio ne' Vestini AQ 9 1854 75025
Barisciano AQ 10 1828 76853
Villa Sant'Angelo AQ 10 424 77277
Rocca di Cambio AQ 12 533 77810
Lucoli AQ 13 1011 78821
Prata d'Ansidonia AQ 13 496 79317
Fagnano Alto AQ 13 418 79735
Santo Stefano di Sessanio AQ 14 111 79846
Tornimparte AQ 16 3187 83033
Rocca di Mezzo AQ 16 1526 84559
San Pio delle Camere AQ 16 661 85220
Fontecchio AQ 17 369 85589
Carapelle Calvisio AQ 18 87 85676
Pizzoli AQ 18 4326 90002
Castelvecchio Calvisio AQ 18 153 90155
Calascio AQ 18 137 90292
Scoppito AQ 18 3727 94019
Caporciano AQ 19 230 94249
Barete AQ 20 737 94986

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
57 Km W of Chieti (51815 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
62 Km W of Pescara (121014 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
72 Km E of Terni (111501 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km SE of Foligno (57155 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
96 Km NE of Roma (2864731 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.0 2020-12-08
17:55:15		 42.3467 13.4762 17 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87206521
Reviewed
Rev100 		ML 2.0 2020-12-08
17:55:15		 42.3498 13.4617 19 2020-12-08
18:05:27		 Sala Sismica INGV-Roma 85294371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-08 17:55:15 ± 0.09
Latitude 42.3467 ± 0.0036
Longitude 13.4762 ± 0.0097
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87206521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 681
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77072
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87206521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-16 09:22:56

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 85294371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-08 18:05:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CORL.HHZ. 2020-12-08T17:57:08.41 3.0 undecidable manual Sn -2.46 0
GU.BLANC.HHZ. 2020-12-08T17:56:40.36 3.0 undecidable manual Pn 1.35 0
IV.NDIM.HHZ. 2020-12-08T17:56:36.51 3.0 undecidable manual Sn -2.32 0
IV.MILN.HNZ. 2020-12-08T17:56:33.66 3.0 undecidable manual Pg 15 0
IV.MILZ.HHZ. 2020-12-08T17:56:32.89 3.0 undecidable manual Pg 15.11 0
XK.ALB1.HHZ. 2020-12-08T17:56:29.53 3.0 positive manual Pg 14.43 0
IV.ECTS.HHZ. 2020-12-08T17:56:24.00 3.0 undecidable manual Pn 1.46 0
GU.CANO.HHZ. 2020-12-08T17:56:23.31 3.0 undecidable manual Pn 6.52 0
IV.CPGN.EHZ. 2020-12-08T17:56:10.20 3.0 undecidable manual Sg 7.27 0
GU.GSCL.HHZ. 2020-12-08T17:56:06.32 3.0 positive manual Pg 7.95 0
IV.PZUN.HHZ. 2020-12-08T17:55:59.41 3.0 undecidable manual Pg 6.77 0
IV.VIVA.HHZ. 2020-12-08T17:55:44.60 3.0 undecidable manual Sg 3.55 0
IV.CPOZ.HHZ. 2020-12-08T17:55:42.41 3.0 positive manual Pg 1.53 0
IV.APEC.HHZ. 2020-12-08T17:55:38.36 3.0 undecidable manual Pn 0.05 0
IV.NRCA.HHZ. 2020-12-08T17:55:34.40 0.6 undecidable manual S 331 61.5939 97 -0.12 44
IV.VVLD.HHZ. 2020-12-08T17:55:33.04 0.3 undecidable manual S 167 54.3012 98 0.45 63
IV.MMUR.HNZ. 2020-12-08T17:55:32.74 3.0 undecidable manual Pn -1.72 0
IV.INTR.HHZ. 2020-12-08T17:55:31.55 0.6 undecidable manual S 136 51.2154 98 -0.22 44
IV.CSP1.EHZ. 2020-12-08T17:55:30.08 0.3 undecidable manual P 345 85.5477 94 -0.1 64
IV.LNSS.HNZ. 2020-12-08T17:55:30.50 0.6 undecidable manual S 309 45.621 100 0.21 45
IV.MTRA.EHZ. 2020-12-08T17:55:30.08 0.3 undecidable manual S 352 45.9207 100 -0.31 66
IV.GUMA.HHZ. 2020-12-08T17:55:29.64 0.3 undecidable manual P 352 80.2641 95 0.28 62
IV.FDMO.HHZ. 2020-12-08T17:55:29.94 0.6 undecidable manual P 338 82.8504 95 0.19 42
IV.PTQR.HHZ. 2020-12-08T17:55:28.19 0.3 undecidable manual S 190 36.5412 103 0.26 68
IV.MF5.EHZ. 2020-12-08T17:55:28.62 0.3 undecidable manual P 359 71.1732 96 0.66 57
IV.T1299.HNE. 2020-12-08T17:55:27.72 0.6 undecidable manual S 334 35.6421 104 0.03 47
IV.GAVE.EHN. 2020-12-08T17:55:27.13 0.1 undecidable manual P 309 61.0944 97 0.71 75
IV.SMA1.EHZ. 2020-12-08T17:55:26.78 1.0 undecidable manual S 340 33.5442 105 -0.36 22
IV.NRCA.HHZ. 2020-12-08T17:55:26.04 0.3 undecidable manual P 331 61.5939 97 -0.45 62
IV.TERO.HHZ. 2020-12-08T17:55:26.82 0.3 undecidable manual S 19 32.3454 106 -0.02 72
IV.T0110.HHZ. 2020-12-08T17:55:25.96 0.6 undecidable manual S 118 27.8499 109 0.26 46
IV.VVLD.HHZ. 2020-12-08T17:55:25.17 0.1 undecidable manual P 167 54.3012 98 -0.21 88
IV.INTR.HHZ. 2020-12-08T17:55:24.38 0.1 undecidable manual P 136 51.2154 98 -0.53 81
IV.LNSS.HNZ. 2020-12-08T17:55:24.32 0.1 undecidable manual P 309 45.621 100 0.26 89
IV.CAMP.HHN. 2020-12-08T17:55:24.31 0.3 undecidable manual S 345 21.6672 117 0.13 71
IV.MTRA.EHZ. 2020-12-08T17:55:23.72 0.1 positive manual P 352 45.9207 100 -0.39 86
IV.TERO.HHZ. 2020-12-08T17:55:22.02 0.1 positive manual P 19 32.3454 106 -0.05 95
IV.T1299.HNE. 2020-12-08T17:55:22.37 0.3 undecidable manual P 334 35.6421 104 -0.18 69
IV.PTQR.HHZ. 2020-12-08T17:55:22.38 0.1 undecidable manual P 190 36.5412 103 -0.31 89
IV.GIGS.HHZ. 2020-12-08T17:55:22.86 0.3 undecidable manual S 34 14.1747 132 0.34 68
IV.SMA1.EHZ. 2020-12-08T17:55:22.01 0.1 undecidable manual P 340 33.5442 105 -0.23 91
IV.T0110.HHZ. 2020-12-08T17:55:21.44 0.1 negative manual P 118 27.8499 109 0.04 96
IV.CAMP.HHN. 2020-12-08T17:55:20.60 0.1 undecidable manual P 345 21.6672 117 0.08 96
MN.AQU.HNN. 2020-12-08T17:55:20.84 0.3 undecidable manual S 278 5.8941 157 -0.37 71
IV.GIGS.HHZ. 2020-12-08T17:55:19.73 0.1 undecidable manual P 34 14.1747 132 0.16 95
MN.AQU.HNN. 2020-12-08T17:55:18.78 0.1 undecidable manual P 278 5.8941 157 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHE. ML:2.1 0.0006445 0.88 AML other m 2020-12-08T17:55:26.53
IV.T0110.HHN. ML:2.1 0.0005510000000000001 0.28 AML other m 2020-12-08T17:55:26.57
IV.TERO.HHE. ML:2.0 0.000399 1.3 AML other m 2020-12-08T17:55:27.10
IV.TERO.HNN. ML:2.0 0.0004505 0.86 AML other m 2020-12-08T17:55:28.26
IV.PTQR.HHE. ML:1.8 0.000215 0.58 AML other m 2020-12-08T17:55:29.07
IV.SMA1.EHN. ML:1.6 0.0001741 0.42 AML other m 2020-12-08T17:55:29.40
IV.TERO.HNE. ML:2.1 0.0004965 0.44 AML other m 2020-12-08T17:55:29.65
IV.TERO.HHN. ML:2.0 0.00037 0.28 AML other m 2020-12-08T17:55:29.59
IV.MTRA.HNN. ML:2.1 0.000361 0.82 AML other m 2020-12-08T17:55:30.69
IV.MTRA.EHE. ML:2.1 0.00032250000000000003 0.52 AML other m 2020-12-08T17:55:30.57
IV.MTRA.EHN. ML:2.1 0.0003775 0.24 AML other m 2020-12-08T17:55:30.69
IV.MTRA.HNE. ML:2.1 0.00033899999999999995 0.22 AML other m 2020-12-08T17:55:30.67
IV.SMA1.EHE. ML:1.7 0.00020649999999999998 1.22 AML other m 2020-12-08T17:55:31.77
IV.PTQR.HHN. ML:1.5 0.00010539999999999999 0.6 AML other m 2020-12-08T17:55:31.49
IV.NRCA.HHN. ML:1.9 0.00015050000000000003 0.84 AML other m 2020-12-08T17:55:34.57
IV.NRCA.HHE. ML:2.0 0.000187 0.18 AML other m 2020-12-08T17:55:35.35
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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