Earthquake with magnitude of ML 1.3 on date 07-12-2020 and time 20:16:28 (Italy) in region 3 km S Accumoli (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km S Accumoli (RI), on

  • 07-12-2020 19:16:28 (UTC)
  • 07-12-2020 20:16:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.666, 13.243 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 3 667 667
Amatrice RI 6 2657 3324
Cittareale RI 9 482 3806
Arquata del Tronto AP 13 1178 4984
Montereale AQ 16 2581 7565
Campotosto AQ 16 542 8107
Capitignano AQ 17 665 8772
Acquasanta Terme AP 18 2916 11688
Norcia PG 19 4957 16645
Borbona RI 19 617 17262
Cascia PG 20 3217 20479
Posta RI 20 694 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
83 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
97 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
Reviewed
Rev100
ML 1.3 2020-12-07
19:16:28
42.6657 13.243 12 2020-12-07
22:17:31
Sala Sismica INGV-Roma 85275561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-07 19:16:28 ± 0.14
Latitude 42.6657 ± 0.0072
Longitude 13.2430 ± 0.0098
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85275561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 743
Semi-minor axis of confidence ellipse (meter) 714
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 341
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.42718
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85275561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-07 22:17:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-12-07T19:16:38.36 0.3 undecidable manual S 99 0.2689 94 -0.37 69
IV.CSP1.EHZ. 2020-12-07T19:16:37.59 0.1 undecidable manual P 356 0.4272 92 0.57 85
IV.MMO1.EHZ. 2020-12-07T19:16:37.84 0.3 undecidable manual S 15 0.241 95 -0.08 73
IV.NRCA.HHZ. 2020-12-07T19:16:36.15 0.3 undecidable manual S 331 0.1925 98 -0.33 70
IV.ARRO.EHZ. 2020-12-07T19:16:35.96 0.1 undecidable manual P 256 0.3615 92 0.06 96
IV.MTRA.EHZ. 2020-12-07T19:16:34.69 0.3 undecidable manual S 51 0.1448 106 -0.4 70
IV.LNSS.HHZ. 2020-12-07T19:16:34.96 0.3 undecidable manual S 247 0.1619 102 -0.62 65
IV.TERO.HHZ. 2020-12-07T19:16:34.34 0.1 undecidable manual P 99 0.2689 94 0.03 99
IV.MMO1.EHZ. 2020-12-07T19:16:33.97 0.1 undecidable manual P 15 0.241 95 0.12 98
IV.SMA1.EHZ. 2020-12-07T19:16:33.32 0.3 undecidable manual S 117 0.0764 134 -0.01 77
IV.NRCA.HHZ. 2020-12-07T19:16:33.07 0.1 undecidable manual P 331 0.1925 98 0.05 100
IV.MTRA.EHZ. 2020-12-07T19:16:32.31 0.1 undecidable manual P 51 0.1448 106 0.09 100
IV.LNSS.HHZ. 2020-12-07T19:16:32.67 0.1 undecidable manual P 247 0.1619 102 0.17 98
IV.SMA1.EHZ. 2020-12-07T19:16:31.44 0.1 undecidable manual P 117 0.0764 134 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.6 0.00043 0.3 AML other m 2020-12-07T19:16:33.93
IV.SMA1.EHE. ML:1.7 0.0006405 0.12 AML other m 2020-12-07T19:16:33.83
IV.MTRA.EHN. ML:1.4 0.0002295 1.88 AML other m 2020-12-07T19:16:35.95
IV.MTRA.EHE. ML:1.3 0.0001605 0.36 AML other m 2020-12-07T19:16:35.49
IV.LNSS.HHE. ML:1.1 0.0001042 1.84 AML other m 2020-12-07T19:16:36.95
IV.LNSS.HHN. ML:1.2 0.00011155 1.68 AML other m 2020-12-07T19:16:36.92
IV.NRCA.HHN. ML:1 5.86E-5 0.6 AML other m 2020-12-07T19:16:36.45
IV.NRCA.HHE. ML:1.2 0.000102 0.16 AML other m 2020-12-07T19:16:36.69
IV.TERO.HHE. ML:1 5.035E-5 0.1 AML other m 2020-12-07T19:16:39.40
IV.TERO.HHN. ML:1.2 7.84E-5 0.52 AML other m 2020-12-07T19:16:39.66
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