Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 29-11-2020 and time 15:54:21 (Italy) in region 7 km W Cittareale (RI)

A magnitude ML 1.5 earthquake occured in region: 7 km W Cittareale (RI), on

  • 29-11-2020 14:54:21 (UTC)
  • 29-11-2020 15:54:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.61, 13.08 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 7 482 482
Posta RI 9 694 1176
Leonessa RI 11 2435 3611
Borbona RI 11 617 4228
Monteleone di Spoleto PG 12 599 4827
Cascia PG 14 3217 8044
Montereale AQ 16 2581 10625
Poggiodomo PG 17 117 10742
Accumoli RI 17 667 11409
Amatrice RI 17 2657 14066
Micigliano RI 17 127 14193
Polino TR 20 233 14426
Poggio Bustone RI 20 2055 16481

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Terni (111501 inhabitants)
39 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
51 Km W of Teramo (54892 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
83 Km E of Viterbo (67173 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
94 Km W of Chieti (51815 inhabitants)
94 Km W of Pescara (121014 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.5 2020-11-29
14:54:21		 42.61 13.08 12 2020-11-29
15:04:53		 Sala Sismica INGV-Roma 85090531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-29 14:54:21 ± 0.08
Latitude 42.61 ± 0.00
Longitude 13.08 ± 0.00
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 85090531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 294
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49283
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 85090531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-29 15:04:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILZ.HHZ. 2020-11-29T14:56:15.22 3.0 undecidable manual Sn 4.38 0
IV.GRI.EHZ. 2020-11-29T14:56:12.25 3.0 undecidable manual Sn 4.17 0
XK.ALB1.HHZ. 2020-11-29T14:56:08.29 3.0 undecidable manual Sn 2.49 0
GU.TRAV.HHZ. 2020-11-29T14:55:49.55 3.0 negative manual Pg 17.5 0
AC.VLO.HHZ. 2020-11-29T14:55:46.98 3.0 negative manual Pg 17.540001 0
XK.GIZZ.HHZ. 2020-11-29T14:55:34.43 3.0 undecidable manual Pg 17.860001 0
IV.MILZ.HHZ. 2020-11-29T14:55:33.24 3.0 undecidable manual Pg 12.09 0
IV.IMOL.EHZ. 2020-11-29T14:55:31.23 3.0 undecidable manual Sg 10.64 0
XK.SELL.HHZ. 2020-11-29T14:55:30.85 3.0 negative manual Pg 11.89 0
IX.STN3.HHZ.02 2020-11-29T14:55:25.35 3.0 undecidable manual Sn -0.31 0
CR.STON.BHZ. 2020-11-29T14:55:23.10 3.0 undecidable manual Pg 18.09 0
GU.POPM.HHZ. 2020-11-29T14:55:22.02 3.0 undecidable manual Sn -4.49 0
XK.ALB1.HHZ. 2020-11-29T14:55:15.67 3.0 undecidable manual Pn -2.65 0
IV.MTMR.HNZ. 2020-11-29T14:55:09.90 3.0 undecidable manual Sn -0.75 0
IV.SPS2.HHZ. 2020-11-29T14:55:09.61 3.0 negative manual Pn -4.11 0
IV.MPPT.EHZ. 2020-11-29T14:54:57.01 3.0 undecidable manual Pg 4.06 0
IV.FERS.HNZ. 2020-11-29T14:54:55.12 3.0 undecidable manual Pn -5.22 0
IV.LRP.EHZ. 2020-11-29T14:54:49.89 3.0 undecidable manual Sg 6.74 0
IV.CSP1.EHZ. 2020-11-29T14:54:39.58 0.3 undecidable manual S 11 0.4928 91 0.55 64
IV.SACS.HHZ. 2020-11-29T14:54:38.27 3.0 undecidable manual Pg 0.44 0
IV.MOMA.HNZ. 2020-11-29T14:54:37.29 0.6 undecidable manual S 298 0.4236 91 0.31 45
IV.TERO.HHZ. 2020-11-29T14:54:35.64 0.3 undecidable manual S 87 0.3849 91 -0.18 70
IV.MMO1.HNE. 2020-11-29T14:54:34.56 0.6 undecidable manual S 32 0.3435 91 -0.04 47
IV.CSP1.EHZ. 2020-11-29T14:54:32.00 0.1 undecidable manual P 11 0.4928 91 0.18 91
IV.MTRA.HNE. 2020-11-29T14:54:32.60 0.6 undecidable manual S 57 0.2761 92 0.01 49
IV.CAMP.HHZ. 2020-11-29T14:54:31.63 0.6 undecidable manual S 106 0.2518 93 -0.24 47
IV.MOMA.HNZ. 2020-11-29T14:54:30.89 0.3 undecidable manual P 298 0.4236 91 0.26 68
IV.SMA1.EHZ. 2020-11-29T14:54:30.26 0.6 undecidable manual S 83 0.188 95 0.25 47
IV.RCAV.EHZ. 2020-11-29T14:54:30.23 3.0 undecidable manual P -0.26 0
IV.NRCA.HHZ. 2020-11-29T14:54:30.87 0.3 undecidable manual S 6 0.2275 93 -0.31 68
IV.ARRO.EHZ. 2020-11-29T14:54:30.90 0.6 undecidable manual S 263 0.2338 93 -0.45 45
IV.TERO.HHZ. 2020-11-29T14:54:29.87 0.1 undecidable manual P 87 0.3849 91 -0.09 94
IV.MMO1.HNE. 2020-11-29T14:54:29.16 0.1 undecidable manual P 32 0.3435 91 -0.1 94
IV.VVLD.HHZ. 2020-11-29T14:54:28.49 3.0 undecidable manual P -0.54 0
IV.T1299.EHE. 2020-11-29T14:54:28.94 0.6 undecidable manual S 79 0.1502 100 0.05 49
IV.NRCA.HHZ. 2020-11-29T14:54:27.18 0.1 undecidable manual P 6 0.2275 93 -0.1 96
IV.MTRA.HNE. 2020-11-29T14:54:27.92 0.1 undecidable manual P 57 0.2761 92 -0.18 94
IV.ARRO.EHZ. 2020-11-29T14:54:27.27 0.1 undecidable manual P 263 0.2338 93 -0.11 97
IV.CAMP.HHZ. 2020-11-29T14:54:27.62 0.1 undecidable manual P 106 0.2518 93 -0.06 98
IV.SMA1.EHZ. 2020-11-29T14:54:26.80 0.1 undecidable manual P 83 0.188 95 0.19 95
IV.T1299.EHE. 2020-11-29T14:54:26.10 0.1 undecidable manual P 79 0.1502 100 0.14 97
IV.LNSS.HHZ. 2020-11-29T14:54:25.92 0.6 undecidable manual S 263 0.0306 159 -0.22 49
IV.LNSS.HHZ. 2020-11-29T14:54:24.48 0.1 undecidable manual P 263 0.0306 159 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.6 0.0006805 0.14 AML other m 2020-11-29T14:54:26.12
IV.LNSS.HNE. ML:1.6 0.000606 0.12 AML other m 2020-11-29T14:54:26.13
IV.LNSS.HHN. ML:1.6 0.0006345 0.7 AML other m 2020-11-29T14:54:26.34
IV.LNSS.HNN. ML:1.6 0.000626 0.72 AML other m 2020-11-29T14:54:26.70
IV.SMA1.EHE. ML:1.2 0.000107534045 0.1792 AML other m 2020-11-29T14:54:30.56
IV.SMA1.EHN. ML:1.5 0.0002336245 0.2816 AML other m 2020-11-29T14:54:30.58
IV.NRCA.HNE. ML:1.6 0.00023590875 0.864 AML other m 2020-11-29T14:54:35.90
IV.NRCA.HNN. ML:1.4 0.00014905949 0.5056 AML other m 2020-11-29T14:54:31.50
IV.NRCA.HHE. ML:1.5 0.0001687206 0.1024 AML other m 2020-11-29T14:54:32.42
IV.NRCA.HHN. ML:1.3 0.000114409065 0.1408 AML other m 2020-11-29T14:54:32.18
IV.ARRO.EHE. ML:1 6.2476515E-5 0.1792 AML other m 2020-11-29T14:54:31.64
IV.ARRO.EHN. ML:1 6.217283E-5 0.16 AML other m 2020-11-29T14:54:32.05
IV.TERO.HHE. ML:0.9 2.4725325E-5 0.16 AML other m 2020-11-29T14:54:36.11
IV.TERO.HHN. ML:1 3.244366E-5 0.736 AML other m 2020-11-29T14:54:35.89
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download