Earthquake with magnitude of ML 1.6 on date 19-10-2021 and time 01:23:05 (Italy) in region 5 km E Cittareale (RI)

A magnitude ML 1.6 earthquake occured in region: 5 km E Cittareale (RI), on

  • 18-10-2021 23:23:05 (UTC)
  • 19-10-2021 01:23:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.614, 13.223 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
Cittareale RI 5 482 482
Amatrice RI 6 2657 3139
Accumoli RI 9 667 3806
Montereale AQ 10 2581 6387
Capitignano AQ 12 665 7052
Borbona RI 13 617 7669
Campotosto AQ 14 542 8211
Posta RI 14 694 8905
Cagnano Amiterno AQ 17 1369 10274
Barete AQ 19 737 11011
Arquata del Tronto AP 19 1178 12189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
83 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-10-18
23:23:05
42.6135 13.2228 12 2021-10-18
23:30:51
Sala Sismica INGV-Roma 96740391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-18 23:23:05 ± 0.07
Latitude 42.6135 ± 0.0036
Longitude 13.2228 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96740391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.59535
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 96740391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-18 23:30:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HNZ. 2021-10-18T23:23:49.69 3.0 undecidable manual S 0.4 0
IX.NSC3.EHZ.02 2021-10-18T23:23:49.68 3.0 undecidable manual Pg 8 0
IV.PAOL.HHZ. 2021-10-18T23:23:41.67 3.0 positive manual Pg 5.38 0
IV.NARO.HHZ. 2021-10-18T23:23:41.07 3.0 undecidable manual S -0.31 0
IV.ASSB.HHZ. 2021-10-18T23:23:26.15 0.6 undecidable manual S 316 0.5954 91 0.41 42
IV.MOMA.HHZ. 2021-10-18T23:23:23.94 0.6 undecidable manual S 292 0.5153 92 0.57 41
IV.CSP1.EHZ. 2021-10-18T23:23:22.57 0.3 undecidable manual S 358 0.4784 92 0.31 66
IV.CESX.HHZ. 2021-10-18T23:23:22.27 0.3 undecidable manual S 270 0.4676 92 0.33 66
IV.GUMA.HHZ. 2021-10-18T23:23:22.48 0.3 undecidable manual S 10 0.4569 92 0.87 55
IV.CESI.HHZ. 2021-10-18T23:23:21.65 0.3 undecidable manual S 329 0.4551 92 0.07 70
IV.MF5.EHZ. 2021-10-18T23:23:21.17 0.3 undecidable manual S 25 0.4128 92 0.86 55
IV.EL6.EHZ. 2021-10-18T23:23:20.84 3.0 negative manual P 1.16 0
IV.FIAM.HHZ. 2021-10-18T23:23:18.83 0.3 undecidable manual S 193 0.3543 93 0.25 69
IV.ASSB.HHZ. 2021-10-18T23:23:17.23 0.1 undecidable manual P 316 0.5954 91 -0.01 91
IV.MC2.EHZ. 2021-10-18T23:23:17.20 0.3 undecidable manual S 355 0.2986 93 0.26 69
IV.ARRO.EHZ. 2021-10-18T23:23:17.93 0.3 undecidable manual S 264 0.3381 93 -0.17 69
IV.T0110.HHZ. 2021-10-18T23:23:17.11 3.0 undecidable manual P 0.17 0
IV.TERO.HHZ. 2021-10-18T23:23:16.02 0.3 undecidable manual S 88 0.2806 94 -0.38 68
IV.MMO1.EHZ. 2021-10-18T23:23:16.63 0.3 undecidable manual S 15 0.2959 93 -0.22 70
IV.GUMA.HHZ. 2021-10-18T23:23:15.04 0.1 undecidable manual P 10 0.4569 92 0.18 91
IV.CSP1.EHZ. 2021-10-18T23:23:15.23 0.1 undecidable manual P 358 0.4784 92 0 94
IV.MOMA.HHZ. 2021-10-18T23:23:15.76 0.1 undecidable manual P 292 0.5153 92 -0.11 91
IV.GAVE.EHZ. 2021-10-18T23:23:15.21 0.3 undecidable manual S 288 0.2536 95 -0.41 67
IV.CESX.HHZ. 2021-10-18T23:23:15.04 0.1 undecidable manual P 270 0.4676 92 -0.01 93
IV.FDMO.HHZ. 2021-10-18T23:23:14.32 0.1 undecidable manual P 347 0.4344 92 -0.16 92
IV.NRCA.HHZ. 2021-10-18T23:23:14.38 0.3 undecidable manual S 340 0.2338 95 -0.64 62
IV.CESI.HHZ. 2021-10-18T23:23:14.70 0.1 undecidable manual P 329 0.4551 92 -0.14 91
IV.MF5.EHZ. 2021-10-18T23:23:14.34 0.1 undecidable manual P 25 0.4128 92 0.24 90
IV.MTRA.EHZ. 2021-10-18T23:23:13.17 0.3 undecidable manual S 42 0.1916 98 -0.62 65
IV.FIAM.HHZ. 2021-10-18T23:23:13.19 0.1 undecidable manual P 193 0.3543 93 0.09 95
IV.MC2.EHZ. 2021-10-18T23:23:12.18 0.1 undecidable manual P 355 0.2986 93 0.02 97
IV.CAMP.HHZ. 2021-10-18T23:23:12.69 0.3 undecidable manual S 119 0.1574 103 -0.1 74
IV.ARRO.EHZ. 2021-10-18T23:23:12.65 0.1 undecidable manual P 264 0.3381 93 -0.18 92
IV.GAVE.EHZ. 2021-10-18T23:23:11.27 0.1 positive manual P 288 0.2536 95 -0.12 95
IV.TERO.HHZ. 2021-10-18T23:23:11.71 0.3 negative manual P 88 0.2806 94 -0.14 71
IV.RM33.EHZ. 2021-10-18T23:23:11.39 0.3 undecidable manual S 183 0.1043 121 0.06 75
IV.MMO1.EHZ. 2021-10-18T23:23:11.86 0.1 undecidable manual P 15 0.2959 93 -0.25 93
IV.LNSS.HHZ. 2021-10-18T23:23:11.95 0.3 undecidable manual S 266 0.1349 110 -0.18 72
IV.NRCA.HHZ. 2021-10-18T23:23:10.74 0.1 undecidable manual P 340 0.2338 95 -0.31 92
IV.SMA1.EHZ. 2021-10-18T23:23:10.85 0.3 undecidable manual S 78 0.0845 130 0 76
IV.MTRA.EHZ. 2021-10-18T23:23:10.10 0.1 undecidable manual P 42 0.1916 98 -0.24 95
IV.RM33.EHZ. 2021-10-18T23:23:09.17 0.3 undecidable manual P 183 0.1043 121 0.25 72
IV.LNSS.HHZ. 2021-10-18T23:23:09.40 0.1 undecidable manual P 266 0.1349 110 0.01 100
IV.CAMP.HHZ. 2021-10-18T23:23:09.85 0.1 undecidable manual P 119 0.1574 103 0.09 98
IV.SMA1.EHZ. 2021-10-18T23:23:08.85 0.1 negative manual P 78 0.0845 130 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2 0.00116592975 0.2048 AML other m 2021-10-18T23:23:11.07
IV.SMA1.EHE. ML:2.6 0.005065 0.24 AML other m 2021-10-18T23:23:11.13
IV.RM33.HNE. ML:1.9 0.0007956864 0.1408 AML other m 2021-10-18T23:23:12.26
IV.RM33.EHE. ML:1.9 0.00079324515 0.1408 AML other m 2021-10-18T23:23:12.26
IV.LNSS.HHN. ML:1.4 0.000246012 0.1024 AML other m 2021-10-18T23:23:13.79
IV.RM33.HNN. ML:1.9 0.0007820569 0.128 AML other m 2021-10-18T23:23:11.69
IV.RM33.EHN. ML:1.9 0.0007490915 0.1152 AML other m 2021-10-18T23:23:11.70
IV.LNSS.HHE. ML:1.6 0.0003805 0.12 AML other m 2021-10-18T23:23:12.33
IV.MTRA.HNN. ML:2.1 0.000814 0.14 AML other m 2021-10-18T23:23:13.31
IV.MTRA.EHN. ML:2.1 0.000812 0.14 AML other m 2021-10-18T23:23:13.32
IV.MTRA.HNE. ML:2 0.00064152235 0.2176 AML other m 2021-10-18T23:23:14.16
IV.MTRA.EHE. ML:2 0.0006726367 0.2304 AML other m 2021-10-18T23:23:14.16
IV.CAMP.HHE. ML:1.2 0.000109323385 0.4608 AML other m 2021-10-18T23:23:14.68
IV.NRCA.HHE. ML:1.7 0.00028082485 0.0768 AML other m 2021-10-18T23:23:16.09
IV.NRCA.HHN. ML:1.7 0.0002849368 0.0896 AML other m 2021-10-18T23:23:15.42
IV.CAMP.HHN. ML:1.2 0.0001415 1.4 AML other m 2021-10-18T23:23:16.06
IV.GAVE.EHN. ML:1.8 0.00031419755 0.1792 AML other m 2021-10-18T23:23:15.60
IV.GAVE.EHE. ML:1.8 0.0002825162 0.1664 AML other m 2021-10-18T23:23:17.30
IV.FIAM.HHE. ML:1 3.725E-5 0.38 AML other m 2021-10-18T23:23:19.52
IV.ARRO.EHE. ML:1.4 8.27E-5 1.84 AML other m 2021-10-18T23:23:20.93
IV.FIAM.HHN. ML:0.9 3.18E-5 1.14 AML other m 2021-10-18T23:23:20.01
IV.ARRO.EHN. ML:1.4 9.605E-5 0.18 AML other m 2021-10-18T23:23:20.89
IV.GUMA.HHE. ML:2 0.000282 0.32 AML other m 2021-10-18T23:23:22.73
IV.CESI.HHE. ML:1.1 3.1581375E-5 0.1408 AML other m 2021-10-18T23:23:23.35
IV.GUMA.HHN. ML:1.9 0.0001873766 0.384 AML other m 2021-10-18T23:23:23.19
IV.CESI.HHN. ML:1.4 7.015E-5 0.38 AML other m 2021-10-18T23:23:24.34
IV.MOMA.HHN. ML:1.6 8.905E-5 1.8 AML other m 2021-10-18T23:23:24.95
IV.MOMA.HHE. ML:1.8 0.0001245 0.28 AML other m 2021-10-18T23:23:25.20
IV.CESX.HHN. ML:1.4 6.52E-5 0.28 AML other m 2021-10-18T23:23:26.18
IV.CESX.HHE. ML:1.3 5.1650975E-5 0.32 AML other m 2021-10-18T23:23:26.18
IV.ASSB.HHN. ML:1.4 4.0969475E-5 0.2688 AML other m 2021-10-18T23:23:26.89
IV.ASSB.HHE. ML:1.3 3.747302E-5 0.2176 AML other m 2021-10-18T23:23:28.20
IV.T0110.HHN. ML:1.5 5.895E-5 0.3 AML other m 2021-10-18T23:23:29.63
IV.T0110.HHE. ML:1.4 5.5905505E-5 0.2304 AML other m 2021-10-18T23:23:29.86
IV.LNSS.HNE. ML:1.6 0.00033913455 0.128 AML other m 2021-10-18T23:23:12.33
IV.LNSS.HNN. ML:1.5 0.00025889895 0.32 AML other m 2021-10-18T23:23:13.37
IV.NRCA.HNE. ML:1.7 0.0002629937 0.1408 AML other m 2021-10-18T23:23:16.31
IV.NRCA.HNN. ML:1.7 0.0002567928 0.0768 AML other m 2021-10-18T23:23:15.39
IV.GAVE.HNE. ML:1.8 0.00028073249 0.1152 AML other m 2021-10-18T23:23:17.29
IV.GAVE.HNN. ML:1.5 0.0001734392 0.8832 AML other m 2021-10-18T23:23:14.04
IV.TERO.HHE. ML:1.6 0.00016928545 0.1792 AML other m 2021-10-18T23:23:17.14
IV.TERO.HHN. ML:1.7 0.000244929 0.192 AML other m 2021-10-18T23:23:16.83
IV.TERO.HNE. ML:1.5 0.0001535942 0.1408 AML other m 2021-10-18T23:23:16.45
IV.TERO.HNN. ML:1.7 0.0002133207 0.064 AML other m 2021-10-18T23:23:16.61
IV.FIAM.HNE. ML:2.9 0.0026166191 1.3056 AML other m 2021-10-18T23:23:26.28
IV.FIAM.HNN. ML:1.5 0.000109933645 0.9216 AML other m 2021-10-18T23:23:31.19
IV.FDMO.HHE. ML:1 2.673157E-5 0.1664 AML other m 2021-10-18T23:23:26.05
IV.FDMO.HHN. ML:1.1 3.3517395E-5 0.128 AML other m 2021-10-18T23:23:23.08
IV.MF5.EHE. ML:1.5 0.000102242025 0.4352 AML other m 2021-10-18T23:23:23.05
IV.MF5.EHN. ML:1.5 8.5115585E-5 0.4224 AML other m 2021-10-18T23:23:21.43
IV.CESI.HNE. ML:1.7 0.000117777565 0.7424 AML other m 2021-10-18T23:23:35.80
IV.CESI.HNN. ML:1.7 0.00013101665 0.8192 AML other m 2021-10-18T23:23:28.67
IV.GUMA.HNE. ML:2 0.0002547394 0.2688 AML other m 2021-10-18T23:23:22.88
IV.GUMA.HNN. ML:2 0.00022404115 0.4864 AML other m 2021-10-18T23:23:22.94
IV.CSP1.EHE. ML:1.5 7.446264E-5 0.1664 AML other m 2021-10-18T23:23:23.83
IV.CSP1.EHN. ML:1.6 9.914876E-5 0.1792 AML other m 2021-10-18T23:23:24.02
IV.MOMA.HNE. ML:1.8 0.00014249645 0.1792 AML other m 2021-10-18T23:23:25.34
IV.MOMA.HNN. ML:1.7 0.00010328124 0.4864 AML other m 2021-10-18T23:23:17.20
IV.EL6.EHE. ML:1.5 4.3592245E-5 0.5632 AML other m 2021-10-18T23:23:38.59
IV.EL6.EHN. ML:1.4 3.52735065E-5 0.1792 AML other m 2021-10-18T23:23:32.86
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