Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 30-10-2021 and time 14:30:08 (Italy) in region 5 km NW Cittareale (RI)

A magnitude ML 1.5 earthquake occured in region: 5 km NW Cittareale (RI), on

  • 30-10-2021 12:30:08 (UTC)
  • 30-10-2021 14:30:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6580, 13.1300 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.

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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 5 482 482
Accumoli RI 11 667 1149
Cascia PG 12 3217 4366
Amatrice RI 13 2657 7023
Monteleone di Spoleto PG 15 599 7622
Posta RI 15 694 8316
Norcia PG 15 4957 13273
Borbona RI 16 617 13890
Poggiodomo PG 17 117 14007
Leonessa RI 17 2435 16442
Montereale AQ 18 2581 19023
Arquata del Tronto AP 19 1178 20201

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of L'Aquila (69753 inhabitants)
41 Km E of Terni (111501 inhabitants)
47 Km W of Teramo (54892 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km W of Chieti (51815 inhabitants)
100 Km NE of Roma (2864731 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 2021-10-30
12:30:08		 42.6585 13.13 12 2022-03-30
13:04:15		 Bollettino Sismico Italiano INGV 97377871
Reviewed
Rev100 		ML 1.6 2021-10-30
12:30:08		 42.6685 13.1243 11 2021-10-30
12:37:33		 Sala Sismica INGV-Roma 97088711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-30 12:30:08 ± 0.05
Latitude 42.6585 ± 0.0027
Longitude 13.1300 ± 0.0037
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 97377871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.51621
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 97377871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-10 12:48:50

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 97088711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-30 12:37:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-10-30T12:30:26.60 0.6 undecidable manual S 318 57.2982 91 0.59 41
IV.MOMA.HHZ. 2021-10-30T12:30:24.26 0.3 undecidable manual S 290 48.4182 92 0.63 61
IV.GUMA.HNN. 2021-10-30T12:30:24.04 1.0 undecidable manual S 20 47.8188 92 0.55 21
IV.MF5.EHZ. 2021-10-30T12:30:24.03 0.6 undecidable manual S 36 45.3213 92 1.22 31
IV.CSP1.EHZ. 2021-10-30T12:30:23.96 0.3 undecidable manual S 7 48.4182 92 0.31 67
IV.FIAM.HNN. 2021-10-30T12:30:22.19 0.6 undecidable manual S 181 43.3233 92 -0.09 47
IV.CESI.HHZ. 2021-10-30T12:30:21.73 0.3 undecidable manual S 335 42.624 92 -0.35 67
IV.FDMO.HHZ. 2021-10-30T12:30:21.79 0.3 undecidable manual S 355 42.0246 92 -0.16 69
IV.GIGS.HHN. 2021-10-30T12:30:21.93 0.3 undecidable manual S 122 42.7239 92 -0.2 69
IT.MTCL.HGZ. 2021-10-30T12:30:20.92 0.6 undecidable manual S 344 38.7279 92 -0.12 47
IV.TERO.HHZ. 2021-10-30T12:30:20.86 0.6 undecidable manual S 96 38.8278 92 -0.23 46
IV.FEMA.HNE. 2021-10-30T12:30:19.52 1.0 undecidable manual S 349 34.3434 93 -0.35 22
IV.ARRO.EHZ. 2021-10-30T12:30:18.87 0.6 undecidable manual S 254 31.0467 93 -0.13 48
IV.MC2.EHZ. 2021-10-30T12:30:18.71 0.3 undecidable manual S 10 28.4493 94 0.39 68
IV.MMO1.EHN. 2021-10-30T12:30:18.80 0.6 undecidable manual S 31 31.1466 93 -0.23 46
IV.ASSB.HHZ. 2021-10-30T12:30:18.72 0.1 undecidable manual P 318 57.2982 91 0.21 89
IV.FAGN.HHZ. 2021-10-30T12:30:17.13 3.0 undecidable manual P 57.2982 -1.37 0
IV.CAMP.HHE. 2021-10-30T12:30:17.83 0.3 undecidable manual S 121 26.5512 95 0.02 73
IV.MOMA.HHZ. 2021-10-30T12:30:17.22 0.1 undecidable manual P 290 48.4182 92 0.09 93
IV.CSP1.EHZ. 2021-10-30T12:30:17.03 0.1 undecidable manual P 7 48.4182 92 -0.11 92
IV.GUMA.HNN. 2021-10-30T12:30:17.12 1.0 undecidable manual P 20 47.8188 92 0.07 23
IV.GIGS.HHN. 2021-10-30T12:30:16.02 0.1 undecidable manual P 122 42.7239 92 -0.25 91
IV.MF5.EHZ. 2021-10-30T12:30:16.77 0.3 undecidable manual P 36 45.3213 92 0.11 70
IV.CESI.HHZ. 2021-10-30T12:30:16.60 0.6 undecidable manual P 335 42.624 92 0.36 44
IV.FIAM.HNN. 2021-10-30T12:30:16.40 1.0 undecidable manual P 181 43.3233 92 0.05 24
IV.MTRA.EHZ. 2021-10-30T12:30:16.85 0.3 undecidable manual S 63 24.2535 95 -0.36 69
IV.FDMO.HHZ. 2021-10-30T12:30:15.94 0.1 undecidable manual P 355 42.0246 92 -0.22 91
IV.SMA1.EHZ. 2021-10-30T12:30:15.50 0.3 undecidable manual S 100 17.0718 103 0.21 72
IV.RM33.EHZ. 2021-10-30T12:30:15.64 0.3 undecidable manual S 157 17.9709 101 0.1 73
IV.GAVE.EHZ. 2021-10-30T12:30:15.57 0.3 undecidable manual S 281 19.5693 99 -0.39 69
IT.MTCL.HGZ. 2021-10-30T12:30:15.85 1.0 undecidable manual P 344 38.7279 92 0.21 23
IV.TERO.HHZ. 2021-10-30T12:30:15.43 0.3 undecidable manual P 96 38.8278 92 -0.24 69
IV.NRCA.HNZ. 2021-10-30T12:30:15.36 0.3 undecidable manual S 356 19.4694 99 -0.57 65
IV.MMO1.EHN. 2021-10-30T12:30:14.37 1.0 undecidable manual P 31 31.1466 93 -0.11 24
IV.ARRO.EHZ. 2021-10-30T12:30:14.48 0.1 undecidable manual P 254 31.0467 93 0.02 97
IV.FEMA.HNE. 2021-10-30T12:30:14.79 1.0 undecidable manual P 349 34.3434 93 -0.17 23
IV.MC2.EHZ. 2021-10-30T12:30:14.05 0.1 undecidable manual P 10 28.4493 94 -0.01 98
IV.T1299.HNN. 2021-10-30T12:30:14.37 0.6 undecidable manual S 102 12.6762 116 0.17 49
IV.MTRA.EHZ. 2021-10-30T12:30:13.36 0.1 undecidable manual P 63 24.2535 95 -0.07 97
IV.LNSS.HHZ. 2021-10-30T12:30:13.41 0.3 undecidable manual S 230 9.5793 129 -0.09 74
IV.CAMP.HHE. 2021-10-30T12:30:13.75 0.1 undecidable manual P 121 26.5512 95 -0.02 98
IV.GAVE.EHZ. 2021-10-30T12:30:12.58 0.1 undecidable manual P 281 19.5693 99 -0.13 97
IV.NRCA.HNZ. 2021-10-30T12:30:12.47 0.1 undecidable manual P 356 19.4694 99 -0.22 95
IV.SMA1.EHZ. 2021-10-30T12:30:12.54 0.1 undecidable manual P 100 17.0718 103 0.22 96
IV.RM33.EHZ. 2021-10-30T12:30:12.56 0.1 undecidable manual P 157 17.9709 101 0.1 98
IV.LNSS.HHZ. 2021-10-30T12:30:11.35 0.1 undecidable manual P 230 9.5793 129 0.07 100
IV.T1299.HNN. 2021-10-30T12:30:11.88 0.3 undecidable manual P 102 12.6762 116 0.19 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNE. ML:2.1 0.001404076 0.3072 AML other m 2021-10-30T12:30:13.64
IV.SMA1.EHN. ML:1.8 0.00054208425 0.2816 AML other m 2021-10-30T12:30:16.00
IV.RM33.EHN. ML:1.1 0.00010735000000000001 0.1 AML other m 2021-10-30T12:30:16.05
IV.NRCA.HHN. ML:1.8 0.000414 0.98 AML other m 2021-10-30T12:30:16.67
IV.NRCA.HHE. ML:1.9 0.000614 0.38 AML other m 2021-10-30T12:30:16.26
IV.GAVE.EHN. ML:1.6 0.0002925 1.14 AML other m 2021-10-30T12:30:16.93
IV.RM33.EHE. ML:1.1 0.00009659999999999999 0.44 AML other m 2021-10-30T12:30:16.58
IV.GAVE.EHE. ML:1.7 0.000389 0.18 AML other m 2021-10-30T12:30:16.69
IV.MTRA.EHN. ML:1.4 0.0001545 0.86 AML other m 2021-10-30T12:30:17.24
IV.MTRA.EHE. ML:1.7 0.0002845 1.06 AML other m 2021-10-30T12:30:17.26
IV.ASSB.HHE. ML:1.1 0.000027937739999999998 0.6784 AML other m 2021-10-30T12:30:27.38
IV.MOMA.HHE. ML:1.4 0.00005835 0.8 AML other m 2021-10-30T12:30:25.56
IV.MOMA.HHN. ML:1.4 0.0000593 0.86 AML other m 2021-10-30T12:30:26.48
IV.ASSB.HHN. ML:1.2 0.000035861815 0.1792 AML other m 2021-10-30T12:30:28.07
IV.LNSS.HNN. ML:1.8 0.00080669955 0.1216 AML other m 2021-10-30T12:30:14.16
IV.TERO.HHN. ML:1.3 0.000073810795 0.1024 AML other m 2021-10-30T12:30:21.49
IV.TERO.HHE. ML:1.4 0.000084931855 0.064 AML other m 2021-10-30T12:30:21.23
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