Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-01-2021 and time 09:10:00 (Italy) in region 8 km NW Cittareale (RI)

A magnitude ML 1.5 earthquake occured in region: 8 km NW Cittareale (RI), on

  • 01-01-2021 08:10:00 (UTC)
  • 01-01-2021 09:10:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6780, 13.1080 at 14 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
Cittareale RI 8 482 482
Cascia PG 9 3217 3699
Accumoli RI 12 667 4366
Norcia PG 13 4957 9323
Monteleone di Spoleto PG 13 599 9922
Poggiodomo PG 15 117 10039
Amatrice RI 16 2657 12696
Posta RI 17 694 13390
Leonessa RI 17 2435 15825
Borbona RI 18 617 16442
Arquata del Tronto AP 19 1178 17620

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Terni (111501 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
45 Km SE of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
87 Km E of Viterbo (67173 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km W of Pescara (121014 inhabitants)
94 Km W of Chieti (51815 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 1.5 2021-01-01
08:10:00		 42.678 13.1085 14 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86395441
Reviewed
Rev100 		ML 1.5 2021-01-01
08:10:01		 42.6863 13.1122 11 2021-01-01
08:37:22		 Sala Sismica INGV-Roma 85937941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-01 08:10:00 ± 0.05
Latitude 42.6780 ± 0.0027
Longitude 13.1085 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86395441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 59
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 35
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 85937941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-01 08:37:22

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 86395441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-20 09:55:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-01-01T08:10:16.30 0.6 undecidable manual S 40 44.7219 96 0.89 36
IV.MOMA.HNE. 2021-01-01T08:10:16.40 0.6 undecidable manual S 288 46.0206 95 0.63 40
IV.CSP1.EHZ. 2021-01-01T08:10:16.27 0.3 undecidable manual S 10 46.62 95 0.36 65
MN.AQU.HHE. 2021-01-01T08:10:15.53 0.6 undecidable manual S 146 43.3233 96 0.48 43
IV.GIGS.HHN. 2021-01-01T08:10:15.44 0.6 undecidable manual S 123 45.4212 95 -0.16 45
IV.FIAM.HHZ. 2021-01-01T08:10:15.89 0.3 undecidable manual S 179 45.5211 95 0.27 68
IV.CESI.HHZ. 2021-01-01T08:10:14.02 0.6 undecidable manual S 335 39.8268 97 -0.11 47
IV.TERO.HHZ. 2021-01-01T08:10:14.00 0.6 undecidable manual S 98 40.9257 96 -0.4 44
IV.FDMO.HHZ. 2021-01-01T08:10:14.19 0.3 undecidable manual S 358 39.8268 97 0.08 70
IT.MTCL.HGZ. 2021-01-01T08:10:13.05 0.6 undecidable manual S 346 36.1416 98 -0.09 47
IV.CAMP.HHZ. 2021-01-01T08:10:11.20 0.6 undecidable manual S 123 29.1486 101 -0.1 47
IV.MMO1.EHZ. 2021-01-01T08:10:11.62 0.3 undecidable manual S 36 30.3474 100 0.01 72
IV.ARRO.EHZ. 2021-01-01T08:10:11.11 0.6 undecidable manual S 249 30.0477 100 -0.43 44
IV.MC2.EHZ. 2021-01-01T08:10:11.03 0.6 undecidable manual S 14 26.751 102 0.37 45
IV.ASSB.HHZ. 2021-01-01T08:10:10.84 0.1 undecidable manual P 318 54.501 94 0.02 93
IV.MOMA.HNE. 2021-01-01T08:10:10.02 0.3 undecidable manual P 288 46.0206 95 0.5 64
IV.CSP1.EHZ. 2021-01-01T08:10:09.54 0.1 negative manual P 10 46.62 95 -0.06 93
IV.MTRA.HNZ. 2021-01-01T08:10:09.91 0.3 undecidable manual S 69 25.0527 104 -0.32 69
MN.AQU.HHE. 2021-01-01T08:10:09.38 0.6 undecidable manual P 146 43.3233 96 0.28 45
IV.FIAM.HHZ. 2021-01-01T08:10:09.44 0.1 undecidable manual P 179 45.5211 95 0.01 94
IV.MF5.EHZ. 2021-01-01T08:10:09.69 0.3 undecidable manual P 40 44.7219 96 0.38 66
IV.GIGS.HHN. 2021-01-01T08:10:09.20 0.1 undecidable manual P 123 45.4212 95 -0.22 90
IV.TERO.HHZ. 2021-01-01T08:10:08.54 0.3 undecidable manual P 98 40.9257 96 -0.19 68
IV.FDMO.HHZ. 2021-01-01T08:10:08.40 0.1 negative manual P 358 39.8268 97 -0.16 92
IV.SMA1.EHZ. 2021-01-01T08:10:08.97 0.6 undecidable manual S 106 19.2696 111 0.22 47
IV.GAVE.EHZ. 2021-01-01T08:10:08.17 0.3 undecidable manual S 275 17.5713 115 -0.16 72
IV.CESI.HHZ. 2021-01-01T08:10:08.49 0.1 negative manual P 335 39.8268 97 -0.08 94
IV.ARRO.EHZ. 2021-01-01T08:10:07.07 0.1 undecidable manual P 249 30.0477 100 0 96
IV.T1299.HNZ. 2021-01-01T08:10:07.73 0.3 undecidable manual S 109 14.9739 121 0.01 74
IV.NRCA.HHZ. 2021-01-01T08:10:07.77 0.3 undecidable manual S 2 17.2716 115 -0.49 67
IT.MTCL.HGZ. 2021-01-01T08:10:07.84 0.3 undecidable manual P 346 36.1416 98 -0.16 70
IV.MMO1.EHZ. 2021-01-01T08:10:07.00 0.1 negative manual P 36 30.3474 100 -0.12 95
IV.LNSS.HHZ. 2021-01-01T08:10:06.48 0.3 undecidable manual S 214 9.9789 136 -0.2 72
IV.MC2.EHZ. 2021-01-01T08:10:06.54 0.1 negative manual P 14 26.751 102 -0.03 97
IV.CAMP.HHZ. 2021-01-01T08:10:06.95 0.1 undecidable manual P 123 29.1486 101 0.01 97
IV.MTRA.HNZ. 2021-01-01T08:10:06.20 0.1 undecidable manual P 69 25.0527 104 -0.12 95
IV.SMA1.EHZ. 2021-01-01T08:10:05.60 0.1 undecidable manual P 106 19.2696 111 0.13 97
IV.T1299.HNZ. 2021-01-01T08:10:05.02 0.1 positive manual P 109 14.9739 121 0.14 97
IV.GAVE.EHZ. 2021-01-01T08:10:05.21 0.1 positive manual P 275 17.5713 115 -0.01 98
IV.NRCA.HHZ. 2021-01-01T08:10:05.00 0.1 negative manual P 2 17.2716 115 -0.19 95
IV.LNSS.HHZ. 2021-01-01T08:10:04.32 0.1 positive manual P 214 9.9789 136 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:2.0 0.0009505795000000001 0.1408 AML other m 2021-01-01T08:10:06.74
IV.LNSS.HNE. ML:2.0 0.0009207869500000002 0.1408 AML other m 2021-01-01T08:10:06.74
IV.LNSS.HHN. ML:2.0 0.00113187425 0.1216 AML other m 2021-01-01T08:10:06.80
IV.LNSS.HNN. ML:2.0 0.0010394999999999998 0.12 AML other m 2021-01-01T08:10:06.80
IV.NRCA.HHN. ML:1.8 0.0004455 0.68 AML other m 2021-01-01T08:10:08.03
IV.NRCA.HHE. ML:2.0 0.0008305 0.1 AML other m 2021-01-01T08:10:08.04
IV.NRCA.HNE. ML:2.0 0.0008310672 0.1088 AML other m 2021-01-01T08:10:08.04
IV.GAVE.EHN. ML:1.7 0.00037286675 0.2432 AML other m 2021-01-01T08:10:08.45
IV.GAVE.EHE. ML:1.7 0.0004035586 0.16 AML other m 2021-01-01T08:10:08.77
IV.GAVE.HNE. ML:1.7 0.0003790757 0.1792 AML other m 2021-01-01T08:10:08.76
IV.SMA1.EHN. ML:1.4 0.00017442985 0.1344 AML other m 2021-01-01T08:10:09.47
IV.SMA1.EHE. ML:1.4 0.00016135675 0.096 AML other m 2021-01-01T08:10:09.88
IV.CAMP.HHE. ML:0.5 0.000016986335000000003 0.1152 AML other m 2021-01-01T08:10:12.43
IV.CAMP.HHN. ML:0.7 0.0000239000725 0.2624 AML other m 2021-01-01T08:10:12.59
IV.ARRO.EHE. ML:1.2 0.000070949315 0.2048 AML other m 2021-01-01T08:10:12.70
IV.ARRO.EHN. ML:1.4 0.00010555 0.28 AML other m 2021-01-01T08:10:13.25
IV.TERO.HHN. ML:1.5 0.00010062886999999999 0.0832 AML other m 2021-01-01T08:10:14.28
IV.FDMO.HHN. ML:1.3 0.00006670000000000001 0.26 AML other m 2021-01-01T08:10:14.32
IV.TERO.HNN. ML:1.6 0.00013333249999999998 0.1216 AML other m 2021-01-01T08:10:14.69
IV.TERO.HHE. ML:1.2 0.00005685 0.1 AML other m 2021-01-01T08:10:14.69
IV.TERO.HNE. ML:1.3 0.000063657085 0.224 AML other m 2021-01-01T08:10:14.84
IV.CESI.HNE. ML:1.4 0.00008853140000000001 0.192 AML other m 2021-01-01T08:10:14.92
IV.CESI.HNN. ML:1.5 0.00011207219000000001 1.872 AML other m 2021-01-01T08:10:14.04
IV.CESI.HHN. ML:1.5 0.000116337875 1.8784 AML other m 2021-01-01T08:10:14.04
IV.FDMO.HHE. ML:1.3 0.0000642 0.14 AML other m 2021-01-01T08:10:15.29
IV.CESI.HHE. ML:1.3 0.00007195 0.18 AML other m 2021-01-01T08:10:16.46
IV.FIAM.HHE. ML:1.2 0.00004094326 0.2816 AML other m 2021-01-01T08:10:16.67
IV.CSP1.EHE. ML:1.5 0.000081460855 1.7184 AML other m 2021-01-01T08:10:16.91
IV.FIAM.HHN. ML:1.2 0.000040650000000000006 1.78 AML other m 2021-01-01T08:10:16.91
IV.CSP1.EHN. ML:1.6 0.00010869037 0.2432 AML other m 2021-01-01T08:10:18.50
IV.ASSB.HHE. ML:1.2 0.000041795990000000004 0.16 AML other m 2021-01-01T08:10:19.36
IV.ASSB.HHN. ML:1.3 0.000043708005 0.2048 AML other m 2021-01-01T08:10:19.57
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