Earthquake with magnitude of ML 1.4 on date 11-12-2020 and time 18:33:14 (Italy) in region 8 km NW Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 11-12-2020 17:33:14 (UTC)
  • 11-12-2020 18:33:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7480, 13.1870 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Accumoli RI 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 10 1178 6802
Cascia PG 15 3217 10019
Cittareale RI 15 482 10501
Amatrice RI 16 2657 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 17 281 13962
Acquasanta Terme AP 18 2916 16878
Preci PG 19 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
96 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 1.4 2020-12-11
17:33:14
42.7482 13.1872 10 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86831651
Reviewed
Rev100
ML 1.4 2020-12-11
17:33:14
42.7423 13.1932 10 2020-12-11
17:38:30
Sala Sismica INGV-Roma 85361191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-11 17:33:14 ± 0.07
Latitude 42.7482 ± 0.0036
Longitude 13.1872 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86831651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.58456
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 86831651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-04 15:57:19

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85361191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-11 17:38:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-12-11T17:33:35.29 0.6 undecidable manual S 354 64.8906 50 1.15 31
IV.GUMA.HHZ. 2020-12-11T17:33:27.57 0.6 undecidable manual S 19 36.9297 50 0.89 37
IV.CSP1.EHZ. 2020-12-11T17:33:27.25 0.3 undecidable manual S 2 38.1285 50 0.23 68
IV.ARRO.EHZ. 2020-12-11T17:33:27.32 0.6 undecidable manual S 242 39.1275 50 0.04 47
IV.TERO.HHZ. 2020-12-11T17:33:26.02 0.6 undecidable manual S 112 36.741 50 -0.61 41
IV.CESI.HHZ. 2020-12-11T17:33:26.50 0.6 undecidable manual S 321 36.6411 50 -0.1 47
IV.MF5.EHZ. 2020-12-11T17:33:26.86 0.6 undecidable manual S 40 34.6431 50 0.79 39
IV.EL6.EHZ. 2020-12-11T17:33:25.69 0.3 undecidable manual P 354 64.8906 50 0.02 68
IV.FDMO.HHZ. 2020-12-11T17:33:25.52 0.6 undecidable manual S 346 33.0447 50 -0.12 47
IV.CAMP.HHZ. 2020-12-11T17:33:24.29 0.6 undecidable manual S 142 29.748 50 -0.47 44
IT.MTCL.HGZ. 2020-12-11T17:33:24.96 0.6 undecidable manual S 331 31.2465 50 -0.21 46
IV.LNSS.HHZ. 2020-12-11T17:33:22.16 0.6 undecidable manual S 217 20.0688 116 0.28 47
IV.MMO1.EHZ. 2020-12-11T17:33:21.57 0.6 undecidable manual S 34 20.2686 116 -0.36 46
IV.ARRO.EHZ. 2020-12-11T17:33:21.49 0.3 undecidable manual P 242 39.1275 50 -0.23 68
IV.TERO.HHZ. 2020-12-11T17:33:21.19 0.3 undecidable manual P 112 36.741 50 -0.15 70
IV.GUMA.HHZ. 2020-12-11T17:33:21.57 0.3 undecidable manual P 19 36.9297 50 0.2 69
IV.MC2.EHZ. 2020-12-11T17:33:21.56 0.6 undecidable manual S 0 18.1707 119 0.28 47
IV.CESI.HHZ. 2020-12-11T17:33:21.25 0.3 undecidable manual P 321 36.6411 50 -0.07 71
IV.SMA1.EHZ. 2020-12-11T17:33:21.80 0.6 undecidable manual S 137 17.7711 119 0.63 42
IV.MF5.EHZ. 2020-12-11T17:33:21.14 0.1 undecidable manual P 40 34.6431 50 0.13 94
IV.CSP1.EHZ. 2020-12-11T17:33:21.33 0.1 undecidable manual P 2 38.1285 50 -0.23 91
IV.FDMO.HHZ. 2020-12-11T17:33:20.49 0.3 undecidable manual P 346 33.0447 50 -0.28 68
IT.MTCL.HGZ. 2020-12-11T17:33:20.19 0.3 undecidable manual P 331 31.2465 50 -0.31 68
IV.MTRA.EHZ. 2020-12-11T17:33:20.51 0.3 undecidable manual S 87 17.0718 120 -0.45 68
IV.T1299.HNN. 2020-12-11T17:33:20.53 0.6 undecidable manual S 148 14.7741 124 0.24 47
IV.CAMP.HHZ. 2020-12-11T17:33:20.09 0.1 undecidable manual P 142 29.748 50 -0.17 94
IV.SMA1.EHZ. 2020-12-11T17:33:18.58 0.3 undecidable manual P 137 17.7711 119 0.39 69
IV.MMO1.EHZ. 2020-12-11T17:33:18.42 0.1 undecidable manual P 34 20.2686 116 -0.21 95
IV.LNSS.HHZ. 2020-12-11T17:33:18.67 0.1 positive manual P 217 20.0688 116 0.08 97
IV.NRCA.HHZ. 2020-12-11T17:33:18.92 0.3 undecidable manual S 328 11.1777 131 -0.37 70
IV.MC2.EHZ. 2020-12-11T17:33:18.30 0.1 positive manual P 0 18.1707 119 0.05 98
IV.NRCA.HHZ. 2020-12-11T17:33:17.12 0.1 undecidable manual P 328 11.1777 131 0.02 100
IV.MTRA.EHZ. 2020-12-11T17:33:17.95 0.1 undecidable manual P 87 17.0718 120 -0.12 97
IV.T1299.HNN. 2020-12-11T17:33:17.92 0.1 undecidable manual P 148 14.7741 124 0.24 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.1 0.0014249999999999998 0.14 AML other m 2020-12-11T17:33:19.10
IV.MTRA.HNN. ML:1.7 0.0004645 1.2 AML other m 2020-12-11T17:33:20.74
IV.MTRA.EHN. ML:1.7 0.0003985 0.2 AML other m 2020-12-11T17:33:20.74
IV.MTRA.HNE. ML:1.8 0.0005805000000000001 1.28 AML other m 2020-12-11T17:33:21.79
IV.MTRA.EHE. ML:1.8 0.000516 1.28 AML other m 2020-12-11T17:33:21.15
IV.LNSS.HHE. ML:1.4 0.0001795 0.12 AML other m 2020-12-11T17:33:22.34
IV.SMA1.EHE. ML:1.2 0.000121 0.66 AML other m 2020-12-11T17:33:22.29
IV.LNSS.HHN. ML:1.6 0.00026250000000000004 0.14 AML other m 2020-12-11T17:33:22.85
IV.SMA1.EHN. ML:1.2 0.00011800000000000001 0.46 AML other m 2020-12-11T17:33:24.53
IV.FDMO.HHN. ML:1.0 0.000046549745 0.256 AML other m 2020-12-11T17:33:25.74
IV.FDMO.HHE. ML:1.0 0.00004497622 0.2816 AML other m 2020-12-11T17:33:26.34
IV.TERO.HHN. ML:1.2 0.0000603 0.8 AML other m 2020-12-11T17:33:26.11
IV.TERO.HHE. ML:1.2 0.00005945 0.26 AML other m 2020-12-11T17:33:27.77
IV.GUMA.HHE. ML:1.9 0.00028521265 0.2432 AML other m 2020-12-11T17:33:27.78
IV.GUMA.HHN. ML:1.6 0.00014266225 0.1664 AML other m 2020-12-11T17:33:27.94
IV.ARRO.EHE. ML:1.0 0.00003347049 1.7824 AML other m 2020-12-11T17:33:27.06
IV.CESI.HHE. ML:1.0 0.00003264618 1.8336 AML other m 2020-12-11T17:33:28.99
IV.CSP1.EHN. ML:1.7 0.00019095045 0.32 AML other m 2020-12-11T17:33:28.07
IV.ARRO.EHN. ML:1.1 0.000042690785 0.128 AML other m 2020-12-11T17:33:28.31
IV.CESI.HHN. ML:1.2 0.00005298704 0.2048 AML other m 2020-12-11T17:33:28.67
IV.CSP1.EHE. ML:1.6 0.00013231872 0.3456 AML other m 2020-12-11T17:33:29.41
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