Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 28-10-2019 and time 18:41:17 (UTC) in region 4 km NE Cittareale (RI)

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

  • 28-10-2019 18:41:17 (UTC)
  • 28-10-2019 19:41:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6480, 13.1820 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.

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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 4 482 482
Accumoli RI 8 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 15 2581 6387
Posta RI 15 694 7081
Borbona RI 16 617 7698
Cascia PG 16 3217 10915
Arquata del Tronto AP 17 1178 12093
Capitignano AQ 17 665 12758
Norcia PG 18 4957 17715
Campotosto AQ 18 542 18257
Monteleone di Spoleto PG 19 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
92 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 1.7 2019-10-28
18:41:17		 42.6482 13.1823 10 2020-02-28
16:42:14		 Bollettino Sismico Italiano INGV 74737351
Reviewed
Rev100 		ML 1.7 2019-10-28
18:41:17		 42.6462 13.1903 13 2019-10-28
18:49:24		 Sala Sismica INGV-Roma 73496331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-28 18:41:17 ± 0.06
Latitude 42.6482 ± 0.0036
Longitude 13.1823 ± 0.0049
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 74737351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 73496331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-28 18:49:24

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 74737351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-17 14:20:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2019-10-28T18:41:39.07 0.3 undecidable manual S 133 67.2771 50 0.82 56
IV.ASSB.HHZ. 2019-10-28T18:41:37.28 0.3 undecidable manual S 316 61.0944 50 0.68 60
IV.VCEL.EHZ. 2019-10-28T18:41:37.54 0.3 undecidable manual S 117 60.6948 50 1.02 52
IV.MOMA.HHZ. 2019-10-28T18:41:34.77 0.3 undecidable manual S 289 52.8027 50 0.37 67
IV.CESX.HHZ. 2019-10-28T18:41:33.29 0.3 undecidable manual S 265 48.8178 50 -0.05 72
IV.CSP1.EHZ. 2019-10-28T18:41:33.57 0.3 undecidable manual S 2 49.2174 50 0.12 71
IV.GUMA.HNN. 2019-10-28T18:41:33.77 0.3 undecidable manual S 15 47.619 50 0.75 60
IV.FDMO.HHZ. 2019-10-28T18:41:32.03 0.3 undecidable manual S 350 43.7229 50 0.04 73
IV.CESI.HHE. 2019-10-28T18:41:32.48 0.3 undecidable manual S 330 45.621 50 0.01 73
IV.MF5.EHZ. 2019-10-28T18:41:32.92 0.3 undecidable manual S 31 43.9227 50 0.89 56
IT.MTCL.HGZ. 2019-10-28T18:41:31.12 0.3 undecidable manual S 339 41.1255 50 -0.17 72
IV.FIAM.HHZ. 2019-10-28T18:41:31.53 0.3 undecidable manual S 187 42.5241 50 -0.12 72
IV.FEMA.HNE. 2019-10-28T18:41:30.38 0.3 undecidable manual S 343 36.4413 50 0.34 70
IV.GIGS.HHZ. 2019-10-28T18:41:30.06 0.3 undecidable manual S 124 38.5281 50 -0.53 66
IV.T0110.HHZ. 2019-10-28T18:41:29.42 0.1 undecidable manual P 133 67.2771 50 -0.13 92
IV.ARRO.EHZ. 2019-10-28T18:41:29.41 0.3 undecidable manual S 257 34.8429 50 -0.21 72
IV.TERO.HHZ. 2019-10-28T18:41:28.80 0.3 undecidable manual S 95 34.5432 50 -0.72 62
IV.MC2.EHZ. 2019-10-28T18:41:28.20 0.3 undecidable manual S 1 29.2485 50 0.1 74
IV.ASSB.HHZ. 2019-10-28T18:41:28.48 0.1 undecidable manual P 316 61.0944 50 -0.12 93
IV.MMO1.EHZ. 2019-10-28T18:41:28.08 0.3 undecidable manual S 23 30.2475 50 -0.3 71
IV.VCEL.EHZ. 2019-10-28T18:41:28.68 0.1 undecidable manual P 117 60.6948 50 0.13 93
IV.MOMA.HHZ. 2019-10-28T18:41:27.17 0.1 undecidable manual P 289 52.8027 50 -0.16 94
IV.CSP1.EHZ. 2019-10-28T18:41:26.60 0.1 undecidable manual P 2 49.2174 50 -0.18 94
IV.GUMA.HNN. 2019-10-28T18:41:26.69 0.3 undecidable manual P 15 47.619 50 0.16 71
IV.CESI.HHE. 2019-10-28T18:41:26.02 0.1 undecidable manual P 330 45.621 50 -0.19 94
IV.MF5.EHZ. 2019-10-28T18:41:26.26 0.3 undecidable manual P 31 43.9227 50 0.3 69
IV.CESX.HHZ. 2019-10-28T18:41:26.45 0.1 undecidable manual P 265 48.8178 50 -0.26 92
IV.MTRA.EHZ. 2019-10-28T18:41:25.30 0.3 undecidable manual S 55 21.1677 116 -0.54 68
IV.FIAM.HHZ. 2019-10-28T18:41:25.57 0.1 undecidable manual P 187 42.5241 50 -0.17 95
IV.CAMP.HHZ. 2019-10-28T18:41:25.84 0.3 undecidable manual S 124 22.3554 115 -0.34 71
IV.FDMO.HHZ. 2019-10-28T18:41:25.73 0.1 undecidable manual P 350 43.7229 50 -0.21 94
IV.FEMA.HNE. 2019-10-28T18:41:25.28 0.6 undecidable manual P 343 36.4413 50 0.47 45
IV.NRCA.HHZ. 2019-10-28T18:41:25.31 0.3 undecidable manual S 345 21.2676 116 -0.56 68
IT.MTCL.HGZ. 2019-10-28T18:41:25.38 0.3 undecidable manual P 339 41.1255 50 -0.15 72
IV.TERO.HHZ. 2019-10-28T18:41:24.17 0.1 undecidable manual P 95 34.5432 50 -0.34 93
IV.RM33.EHZ. 2019-10-28T18:41:24.22 0.3 undecidable manual S 170 15.6732 123 0.06 76
IV.ARRO.EHZ. 2019-10-28T18:41:24.36 0.1 undecidable manual P 257 34.8429 50 -0.2 96
IV.GIGS.HHZ. 2019-10-28T18:41:24.72 0.1 undecidable manual P 124 38.5281 50 -0.41 91
IV.LNSS.HNZ. 2019-10-28T18:41:23.59 0.3 undecidable manual S 247 12.6762 129 0.28 73
IV.MMO1.EHZ. 2019-10-28T18:41:23.60 0.3 undecidable manual P 23 30.2475 50 -0.25 72
IV.SMA1.EHZ. 2019-10-28T18:41:23.75 0.3 undecidable manual S 99 12.6762 129 0.44 71
IV.MC2.EHZ. 2019-10-28T18:41:23.57 0.1 undecidable manual P 1 29.2485 50 -0.12 98
IV.NRCA.HHZ. 2019-10-28T18:41:22.16 0.1 undecidable manual P 345 21.2676 116 -0.24 97
IV.MTRA.EHZ. 2019-10-28T18:41:22.16 0.1 undecidable manual P 55 21.1677 116 -0.23 98
IV.CAMP.HHZ. 2019-10-28T18:41:22.46 0.1 undecidable manual P 124 22.3554 115 -0.12 100
IV.T1299.HNZ. 2019-10-28T18:41:22.47 0.3 undecidable manual S 101 8.2806 141 0.23 75
IV.LNSS.HNZ. 2019-10-28T18:41:21.17 0.1 undecidable manual P 247 12.6762 129 0.25 99
IV.SMA1.EHZ. 2019-10-28T18:41:21.25 0.1 undecidable manual P 99 12.6762 129 0.33 97
IV.RM33.EHZ. 2019-10-28T18:41:21.57 0.1 undecidable manual P 170 15.6732 123 0.16 100
IV.T1299.HNZ. 2019-10-28T18:41:20.67 0.1 undecidable manual P 101 8.2806 141 0.37 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.9 0.0008475 0.16 AML other m 2019-10-28T18:41:23.60
IV.RM33.EHE. ML:1.9 0.000716 0.56 AML other m 2019-10-28T18:41:24.43
IV.RM33.HNE. ML:1.9 0.0007840000000000001 0.56 AML other m 2019-10-28T18:41:24.43
IV.LNSS.HHE. ML:2.0 0.0010105 0.46 AML other m 2019-10-28T18:41:24.46
IV.RM33.HNN. ML:1.8 0.000602 0.92 AML other m 2019-10-28T18:41:24.52
IV.RM33.EHN. ML:1.8 0.0006145 0.94 AML other m 2019-10-28T18:41:24.52
IV.MTRA.EHN. ML:2.0 0.000737 0.22 AML other m 2019-10-28T18:41:25.55
IV.MTRA.HNN. ML:2.0 0.0007484999999999999 0.22 AML other m 2019-10-28T18:41:25.55
IV.MTRA.HNE. ML:2.1 0.000886 0.26 AML other m 2019-10-28T18:41:26.04
IV.MTRA.EHE. ML:2.1 0.000893 0.26 AML other m 2019-10-28T18:41:26.04
IV.NRCA.HHE. ML:2.0 0.0006490000000000001 0.12 AML other m 2019-10-28T18:41:26.24
IV.NRCA.HHN. ML:1.9 0.0005155 1.08 AML other m 2019-10-28T18:41:26.24
IV.CAMP.HHE. ML:1.3 0.0001465 0.78 AML other m 2019-10-28T18:41:26.46
IV.CAMP.HHN. ML:1.3 0.00013800000000000002 1.24 AML other m 2019-10-28T18:41:29.23
IV.TERO.HHE. ML:1.6 0.000151 1.36 AML other m 2019-10-28T18:41:30.03
IV.GIGS.HHE. ML:1.1 0.00004265 0.32 AML other m 2019-10-28T18:41:30.26
IV.GIGS.HHN. ML:1.2 0.00005270000000000001 0.24 AML other m 2019-10-28T18:41:30.30
IV.ARRO.EHN. ML:1.4 0.00010795 0.08 AML other m 2019-10-28T18:41:30.54
IV.ARRO.EHE. ML:1.6 0.000143 0.98 AML other m 2019-10-28T18:41:30.16
IV.TERO.HHN. ML:1.7 0.00021250000000000002 0.56 AML other m 2019-10-28T18:41:31.82
IV.FIAM.HHE. ML:1.0 0.000032149999999999995 1.46 AML other m 2019-10-28T18:41:32.74
IV.FDMO.HHE. ML:1.3 0.00006145 1.26 AML other m 2019-10-28T18:41:32.32
IV.FIAM.HHN. ML:1.0 0.0000349 0.24 AML other m 2019-10-28T18:41:33.61
IV.FDMO.HHN. ML:1.2 0.0000547 1.08 AML other m 2019-10-28T18:41:34.02
IV.CSP1.EHE. ML:1.4 0.00007485 0.42 AML other m 2019-10-28T18:41:35.49
IV.CESX.HHE. ML:1.5 0.0000871 1.58 AML other m 2019-10-28T18:41:35.02
IV.MOMA.HHE. ML:2.0 0.000236 0.24 AML other m 2019-10-28T18:41:36.56
IV.MOMA.HHN. ML:1.8 0.0001465 0.16 AML other m 2019-10-28T18:41:37.18
IV.CESX.HHN. ML:1.4 0.00007345 0.26 AML other m 2019-10-28T18:41:37.65
IV.CSP1.EHN. ML:1.4 0.00006604999999999999 0.72 AML other m 2019-10-28T18:41:38.88
IV.VCEL.EHE. ML:1.8 0.0001255 1.22 AML other m 2019-10-28T18:41:40.28
IV.VCEL.EHN. ML:1.7 0.00011099999999999999 0.24 AML other m 2019-10-28T18:41:41.56
IV.T0110.HHN. ML:1.6 0.00006445000000000001 1.2 AML other m 2019-10-28T18:41:42.77
IV.T0110.HHE. ML:1.6 0.00007515 0.36 AML other m 2019-10-28T18:41:45.84
IV.MGAB.HHE. ML:1.6 0.000049250000000000004 0.56 AML other m 2019-10-28T18:41:49.22
IV.MGAB.HHN. ML:1.6 0.0000473 0.5 AML other m 2019-10-28T18:41:52.09
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