Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 19-12-2020 and time 00:27:15 (UTC) in region 2 km S Capitignano (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km S Capitignano (AQ), on

  • 19-12-2020 00:27:15 (UTC)
  • 19-12-2020 01:27:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5040, 13.3070 at 15 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
Capitignano AQ 2 665 665
Montereale AQ 6 2581 3246
Barete AQ 6 737 3983
Pizzoli AQ 8 4326 8309
Campotosto AQ 8 542 8851
Cagnano Amiterno AQ 8 1369 10220
Amatrice RI 14 2657 12877
Borbona RI 14 617 13494
Crognaleto TE 15 1297 14791
Scoppito AQ 15 3727 18518
Posta RI 17 694 19212
Cittareale RI 17 482 19694
L'Aquila AQ 19 69753 89447
Fano Adriano TE 20 296 89743

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
73 Km W of Chieti (51815 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km W of Pescara (121014 inhabitants)
96 Km NE of Roma (2864731 inhabitants)
99 Km E of Viterbo (67173 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 1.1 2020-12-19
00:27:15		 42.5045 13.3068 15 2021-02-26
14:56:11		 Bollettino Sismico Italiano INGV 85598831
Reviewed
Rev100 		ML 1.1 2020-12-19
00:27:15		 42.5013 13.3057 15 2020-12-19
00:33:34		 Sala Sismica INGV-Roma 85530801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 00:27:15 ± 0.08
Latitude 42.5045 ± 0.0027
Longitude 13.3068 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85598831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.59175
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 85598831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-21 11:22:36

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 85530801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-19 00:33:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-12-19T00:27:34.40 0.3 undecidable manual S 343 61.6938 94 0.3 66
IV.NRCA.HHZ. 2020-12-19T00:27:28.06 0.3 undecidable manual S 337 39.7269 98 -0.22 70
IV.GAVE.EHN. 2020-12-19T00:27:28.12 0.6 undecidable manual S 302 39.627 98 -0.12 47
IV.FDMO.HHZ. 2020-12-19T00:27:26.04 0.1 undecidable manual P 343 61.6938 94 -0.05 93
IV.CSP1.EHZ. 2020-12-19T00:27:26.59 0.3 undecidable manual P 353 65.6898 94 -0.12 68
IV.MTRA.HNZ. 2020-12-19T00:27:25.21 0.3 undecidable manual S 15 28.9488 103 -0.23 71
IV.FIAM.HHZ. 2020-12-19T00:27:25.67 0.3 undecidable manual S 211 30.4473 102 -0.17 71
IV.LNSS.HHZ. 2020-12-19T00:27:24.04 0.3 undecidable manual S 297 24.3534 107 -0.22 71
IV.TERO.HHZ. 2020-12-19T00:27:24.96 0.3 undecidable manual S 61 27.5502 104 -0.13 73
IV.GIGS.HHN. 2020-12-19T00:27:23.56 0.3 undecidable manual S 105 22.4553 109 -0.23 72
IV.GAVE.EHN. 2020-12-19T00:27:23.09 0.3 undecidable manual P 302 39.627 98 0.38 68
MN.AQU.HNN. 2020-12-19T00:27:22.80 0.3 undecidable manual S 154 18.5703 116 -0.01 75
IV.NRCA.HHZ. 2020-12-19T00:27:22.66 0.1 undecidable manual P 337 39.7269 98 -0.07 96
IV.FIAM.HHZ. 2020-12-19T00:27:21.27 0.3 undecidable manual P 211 30.4473 102 -0.05 73
IV.T1299.EHN. 2020-12-19T00:27:21.71 0.3 undecidable manual S 352 14.5743 125 -0.17 73
IV.SMA1.EHZ. 2020-12-19T00:27:21.88 0.3 undecidable manual S 9 14.1747 126 0.08 76
IV.MTRA.HNZ. 2020-12-19T00:27:21.06 0.3 undecidable manual P 15 28.9488 103 -0.03 74
IV.CAMP.HHZ. 2020-12-19T00:27:20.73 0.3 undecidable manual S 67 9.0798 141 -0.08 75
IV.LNSS.HHZ. 2020-12-19T00:27:20.42 0.1 undecidable manual P 297 24.3534 107 0.01 100
IV.TERO.HHZ. 2020-12-19T00:27:20.90 0.1 undecidable manual P 61 27.5502 104 0.01 99
IV.GIGS.HHN. 2020-12-19T00:27:19.99 0.3 undecidable manual P 105 22.4553 109 -0.14 73
MN.AQU.HNN. 2020-12-19T00:27:19.84 0.1 undecidable manual P 154 18.5703 116 0.27 96
IV.T1299.EHN. 2020-12-19T00:27:19.22 0.1 undecidable manual P 352 14.5743 125 0.19 98
IV.SMA1.EHZ. 2020-12-19T00:27:19.24 0.1 undecidable manual P 9 14.1747 126 0.25 97
IV.CAMP.HHZ. 2020-12-19T00:27:18.60 0.1 undecidable manual P 67 9.0798 141 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.7 0.00040849999999999995 0.36 AML other m 2020-12-19T00:27:22.62
IV.SMA1.EHE. ML:1.6 0.0003185 0.38 AML other m 2020-12-19T00:27:22.34
IV.LNSS.HHE. ML:1.0 0.000048 0.14 AML other m 2020-12-19T00:27:24.43
IV.TERO.HHE. ML:0.9 0.00003635 1.32 AML other m 2020-12-19T00:27:25.22
IV.TERO.HHN. ML:1.0 0.0000533 0.72 AML other m 2020-12-19T00:27:25.63
IV.LNSS.HHN. ML:0.9 0.0000407 0.72 AML other m 2020-12-19T00:27:25.88
IV.NRCA.HHN. ML:1.2 0.00004825 0.44 AML other m 2020-12-19T00:27:28.55
IV.NRCA.HHE. ML:1.3 0.00006030000000000001 0.1 AML other m 2020-12-19T00:27:28.76
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download