Earthquake with magnitude of ML 1.7 on date 06-12-2021 and time 08:19:14 (Italy) in region 4 km SE Accumoli (RI)

A magnitude ML 1.7 earthquake occured in region: 4 km SE Accumoli (RI), on

  • 06-12-2021 07:19:14 (UTC)
  • 06-12-2021 08:19:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6770, 13.2900 at 12 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 4 667 667
Amatrice RI 5 2657 3324
Arquata del Tronto AP 11 1178 4502
Cittareale RI 12 482 4984
Acquasanta Terme AP 14 2916 7900
Campotosto AQ 15 542 8442
Montereale AQ 17 2581 11023
Capitignano AQ 17 665 11688
Valle Castellana TE 18 977 12665
Montegallo AP 19 523 13188
Cortino TE 19 656 13844
Rocca Santa Maria TE 19 537 14381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km NE of Tivoli (56533 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 1.7 2021-12-06
07:19:14
42.6767 13.2903 12 2022-03-30
13:04:24
Bollettino Sismico Italiano INGV 99051581
Reviewed
Rev100
ML 1.7 2021-12-06
07:19:14
42.6782 13.2842 11 2021-12-06
07:23:30
Sala Sismica INGV-Roma 98204691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-06 07:19:14 ± 0.06
Latitude 42.6767 ± 0.0045
Longitude 13.2903 ± 0.0061
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99051581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 46
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
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) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.43347
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 99051581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-27 10:15:16

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 98204691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-06 07:23:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2021-12-06T07:19:29.23 0.3 undecidable manual S 319 48.1185 91 -0.17 68
IV.FDMO.HHZ. 2021-12-06T07:19:28.13 0.3 undecidable manual S 338 43.2234 91 0.03 71
IV.MF5.EHZ. 2021-12-06T07:19:26.92 0.3 undecidable manual S 22 37.1295 91 0.43 66
IV.GAVE.EHZ. 2021-12-06T07:19:24.93 0.3 undecidable manual S 273 32.3454 91 -0.28 68
IV.TERO.HHZ. 2021-12-06T07:19:23.26 0.3 undecidable manual S 103 26.2515 92 -0.33 68
IV.CSP1.EHZ. 2021-12-06T07:19:22.66 0.1 positive manual P 351 46.62 91 -0.05 93
IV.NRCA.HHZ. 2021-12-06T07:19:22.21 0.3 undecidable manual S 321 22.5552 93 -0.38 68
IV.LNSS.HHZ. 2021-12-06T07:19:22.61 0.6 undecidable manual S 248 21.9669 93 0.17 49
IV.GUMA.HNN. 2021-12-06T07:19:22.56 0.3 undecidable manual P 5 43.0236 91 0.4 66
IV.CESI.HHZ. 2021-12-06T07:19:22.80 0.3 undecidable manual P 319 48.1185 91 -0.14 68
IV.FDMO.HHZ. 2021-12-06T07:19:22.05 0.3 undecidable manual P 338 43.2234 91 -0.14 69
IV.MF5.EHZ. 2021-12-06T07:19:21.74 0.3 undecidable manual P 22 37.1295 91 0.48 66
IV.CAMP.HHZ. 2021-12-06T07:19:21.44 0.3 undecidable manual S 148 18.3705 94 -0.04 72
IV.GAVE.EHZ. 2021-12-06T07:19:20.53 0.3 undecidable manual P 273 32.3454 91 0.01 72
IV.GIGS.HJZ. 2021-12-06T07:19:20.77 0.3 undecidable manual P 137 33.8439 91 0.01 72
IV.TERO.HHZ. 2021-12-06T07:19:19.57 0.3 undecidable manual P 103 26.2515 92 -0.01 73
IV.ASCOL.EHN. 2021-12-06T07:19:19.44 0.3 undecidable manual P 51 31.1466 91 -0.89 55
IV.MTRA.HNZ. 2021-12-06T07:19:19.54 0.6 undecidable manual S 44 12.3765 111 -0.38 46
IV.LNSS.HHZ. 2021-12-06T07:19:19.10 0.1 positive manual P 248 21.9669 93 0.18 97
IV.MC2.EHZ. 2021-12-06T07:19:19.73 0.3 undecidable manual P 342 27.3504 92 -0.01 73
IV.CAMP.HHZ. 2021-12-06T07:19:18.62 0.3 undecidable manual P 148 18.3705 94 0.25 72
IV.SMA1.EHZ. 2021-12-06T07:19:18.68 0.6 undecidable manual S 144 6.2937 142 0.06 50
IV.NRCA.HHZ. 2021-12-06T07:19:18.92 0.1 positive manual P 321 22.5552 93 -0.09 96
IV.MTRA.HNZ. 2021-12-06T07:19:17.53 0.1 negative manual P 44 12.3765 111 0.06 100
IV.SMA1.EHZ. 2021-12-06T07:19:17.08 0.1 negative manual P 144 6.2937 142 0.36 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.7 0.0006685 0.14 AML other m 2021-12-06T07:19:18.97
IV.SMA1.EHN. ML:1.7 0.0006925 1.72 AML other m 2021-12-06T07:19:19.13
IV.MTRA.HNN. ML:1.6 0.00046350000000000004 0.4 AML other m 2021-12-06T07:19:19.69
IV.MTRA.EHN. ML:1.6 0.00044950000000000003 0.42 AML other m 2021-12-06T07:19:19.69
IV.MTRA.EHE. ML:1.6 0.0004115 1.24 AML other m 2021-12-06T07:19:20.62
IV.MTRA.HNE. ML:1.6 0.000409 0.38 AML other m 2021-12-06T07:19:20.17
IV.LNSS.HHN. ML:1.7 0.000324 0.2 AML other m 2021-12-06T07:19:22.81
IV.LNSS.HNN. ML:1.6 0.000286 0.3 AML other m 2021-12-06T07:19:22.96
IV.LNSS.HHE. ML:1.7 0.0003375 0.46 AML other m 2021-12-06T07:19:22.99
IV.LNSS.HNE. ML:1.7 0.00035999999999999997 0.46 AML other m 2021-12-06T07:19:22.76
IV.NRCA.HHN. ML:1.6 0.0002365 0.7 AML other m 2021-12-06T07:19:23.44
IV.NRCA.HHE. ML:1.7 0.0003325 0.98 AML other m 2021-12-06T07:19:23.17
IV.GAVE.EHN. ML:1.6 0.000188 1.28 AML other m 2021-12-06T07:19:26.70
IV.GAVE.EHE. ML:1.7 0.00021300000000000003 1.22 AML other m 2021-12-06T07:19:26.76
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