Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-10-2019 and time 23:10:36 (Italy) in region 8 km NW Cittareale (RI)

A magnitude ML 1.2 earthquake occured in region: 8 km NW Cittareale (RI), on

  • 09-10-2019 21:10:36 (UTC)
  • 09-10-2019 23:10:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6850, 13.1300 at 11 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.

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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
Accumoli RI 10 667 1149
Cascia PG 10 3217 4366
Norcia PG 12 4957 9323
Amatrice RI 14 2657 11980
Monteleone di Spoleto PG 15 599 12579
Poggiodomo PG 16 117 12696
Arquata del Tronto AP 17 1178 13874
Posta RI 18 694 14568
Borbona RI 19 617 15185
Leonessa RI 19 2435 17620

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Terni (111501 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
92 Km W of Pescara (121014 inhabitants)
93 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
Reviewed
Rev100 		ML 1.2 2019-10-09
21:10:36		 42.685 13.1303 11 2019-10-09
21:17:30		 Sala Sismica INGV-Roma 73166701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-09 21:10:36 ± 0.05
Latitude 42.6850 ± 0.0027
Longitude 13.1303 ± 0.0061
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73166701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35253
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 73166701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-09 21:17:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.USI.HHZ. 2019-10-09T21:11:13.44 3.0 negative manual Pn 0.02 0
IV.MNTV.HNZ. 2019-10-09T21:11:11.79 3.0 positive manual Pg 4.9 0
IV.CPGN.EHZ. 2019-10-09T21:11:09.57 3.0 undecidable manual Sn -2.72 0
IV.MAON.HHZ. 2019-10-09T21:11:05.78 3.0 undecidable manual Sn 0.02 0
IV.FDMO.HHZ. 2019-10-09T21:10:49.40 0.3 undecidable manual S 355 39.1275 90 0.05 73
IV.MMO1.EHZ. 2019-10-09T21:10:46.59 0.3 undecidable manual S 34 28.6491 90 0.04 74
IV.RM33.EHZ. 2019-10-09T21:10:44.09 0.3 undecidable manual S 161 20.6682 90 -0.33 70
IV.NRCA.HHZ. 2019-10-09T21:10:43.09 0.1 undecidable manual S 355 16.5723 90 -0.22 96
IV.SMA1.EHZ. 2019-10-09T21:10:43.60 0.3 undecidable manual S 110 17.7711 90 -0.05 75
IV.FDMO.HHZ. 2019-10-09T21:10:43.80 0.6 undecidable manual P 355 39.1275 90 -0.1 47
IV.ARRO.EHZ. 2019-10-09T21:10:42.79 0.3 undecidable manual P 249 31.9458 90 0 73
TV.SF04.EHZ. 2019-10-09T21:10:42.05 3.0 positive manual P -0.41 0
IV.LNSS.HHZ. 2019-10-09T21:10:42.18 0.1 undecidable manual S 219 11.6772 109 0.14 100
IV.MMO1.EHZ. 2019-10-09T21:10:42.28 0.1 undecidable manual P 34 28.6491 90 0 99
IV.RM33.EHZ. 2019-10-09T21:10:40.98 0.3 undecidable manual P 161 20.6682 90 -0.08 74
IV.NRCA.HHZ. 2019-10-09T21:10:40.51 0.1 undecidable manual P 355 16.5723 90 0.1 100
IV.SMA1.EHZ. 2019-10-09T21:10:40.81 0.1 undecidable manual P 110 17.7711 90 0.21 97
IV.LNSS.HHZ. 2019-10-09T21:10:39.83 0.1 undecidable manual P 219 11.6772 109 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.3 0.000222 0.44 AML other m 2019-10-09T21:10:42.35
IV.LNSS.HHN. ML:1.3 0.00021500000000000002 0.34 AML other m 2019-10-09T21:10:42.59
IV.NRCA.HHN. ML:1.1 0.00011649999999999999 0.1 AML other m 2019-10-09T21:10:43.28
IV.NRCA.HHE. ML:1.4 0.00020400000000000003 0.08 AML other m 2019-10-09T21:10:43.32
IV.SMA1.EHE. ML:1.4 0.000184 0.32 AML other m 2019-10-09T21:10:44.15
IV.SMA1.EHN. ML:1.2 0.0001305 0.28 AML other m 2019-10-09T21:10:44.07
IV.RM33.EHE. ML:0.8 0.000038581205 0.1664 AML other m 2019-10-09T21:10:44.99
IV.RM33.EHN. ML:0.6 0.00002728207 0.1024 AML other m 2019-10-09T21:10:44.68
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