Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 08-10-2019 and time 21:18:39 (Italy) in region 3 km NE Cittareale (RI)

A magnitude ML 1.0 earthquake occured in region: 3 km NE Cittareale (RI), on

  • 08-10-2019 19:18:39 (UTC)
  • 08-10-2019 21:18:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6380, 13.1780 at 15 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 3 482 482
Accumoli RI 9 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 14 2581 6387
Posta RI 14 694 7081
Borbona RI 14 617 7698
Cascia PG 16 3217 10915
Capitignano AQ 16 665 11580
Arquata del Tronto AP 18 1178 12758
Campotosto AQ 18 542 13300
Monteleone di Spoleto PG 19 599 13899
Norcia PG 19 4957 18856
Leonessa RI 19 2435 21291

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)
44 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
91 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
Reviewed
Rev100 		ML 1.0 2019-10-08
19:18:39		 42.6377 13.1783 15 2019-10-08
19:29:21		 Sala Sismica INGV-Roma 73141121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-08 19:18:39 ± 0.09
Latitude 42.6377 ± 0.0036
Longitude 13.1783 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73141121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 384
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 73141121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-08 19:29:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BERNI.HHZ. 2019-10-08T19:20:18.49 3.0 undecidable manual Sn 3.39 0
RF.GEPF.HHZ. 2019-10-08T19:20:01.60 3.0 undecidable manual Sn -0.22 0
IV.ZONE.HHZ. 2019-10-08T19:19:34.02 3.0 positive manual Pg 12.32 0
GU.GSCL.HHZ. 2019-10-08T19:19:27.64 3.0 undecidable manual Sn -0.59 0
IV.POFI.HHZ. 2019-10-08T19:18:57.84 3.0 undecidable manual Pg 2 0
IV.FIR.HHZ. 2019-10-08T19:18:56.07 3.0 negative manual Pg 2.76 0
IV.TERO.HHZ. 2019-10-08T19:18:51.27 0.6 undecidable manual S 93 34.743 101 -0.34 45
IV.VIVA.HHZ. 2019-10-08T19:18:51.76 3.0 undecidable manual Pg 0.13 0
IV.MC2.EHZ. 2019-10-08T19:18:50.69 0.3 undecidable manual S 2 30.3474 103 0.22 71
IV.MMO1.HNZ. 2019-10-08T19:18:50.77 0.3 undecidable manual S 23 31.4463 103 0.03 73
IV.MOMA.HHE. 2019-10-08T19:18:49.28 0.1 undecidable manual P 291 52.9026 96 -0.09 93
IV.CAMP.HHE. 2019-10-08T19:18:48.24 0.3 undecidable manual S 121 21.9669 112 -0.08 73
IV.MTRA.HNZ. 2019-10-08T19:18:48.10 0.6 undecidable manual S 53 22.1556 111 -0.26 46
IV.NRCA.HNZ. 2019-10-08T19:18:48.05 0.3 undecidable manual S 346 22.3554 111 -0.36 69
IV.RM33.EHZ. 2019-10-08T19:18:46.51 0.3 undecidable manual S 168 14.5743 126 -0.08 74
IV.MMO1.HNZ. 2019-10-08T19:18:46.23 0.6 undecidable manual P 23 31.4463 103 0.12 48
IV.TERO.HHZ. 2019-10-08T19:18:46.40 0.1 undecidable manual P 93 34.743 101 -0.21 93
IV.MC2.EHZ. 2019-10-08T19:18:46.40 0.3 undecidable manual P 2 30.3474 103 0.46 67
IV.ARRO.EHN. 2019-10-08T19:18:46.79 0.6 undecidable manual P 259 34.3434 101 0.25 46
IV.SMA1.EHZ. 2019-10-08T19:18:46.45 0.3 undecidable manual S 94 12.876 131 0.24 73
IV.LNSS.HHN. 2019-10-08T19:18:45.80 0.3 undecidable manual S 251 11.877 133 -0.24 73
IV.T1299.HNZ. 2019-10-08T19:18:45.42 0.3 undecidable manual S 93 8.4804 145 -0.01 75
IV.ARVD.HHZ. 2019-10-08T19:18:45.26 3.0 undecidable manual P 0.37 0
IV.NRCA.HNZ. 2019-10-08T19:18:44.58 0.1 undecidable manual P 346 22.3554 111 -0.18 95
IV.CAMP.HHE. 2019-10-08T19:18:44.74 0.1 undecidable manual P 121 21.9669 112 0.04 99
IV.MTRA.HNZ. 2019-10-08T19:18:44.71 0.1 undecidable manual P 53 22.1556 111 -0.02 98
IV.LNSS.HHN. 2019-10-08T19:18:43.41 0.1 undecidable manual P 251 11.877 133 0.02 100
IV.T1299.HNZ. 2019-10-08T19:18:43.18 0.1 undecidable manual P 93 8.4804 145 0.14 99
IV.SMA1.EHZ. 2019-10-08T19:18:43.72 0.1 undecidable manual P 94 12.876 131 0.23 97
IV.RM33.EHZ. 2019-10-08T19:18:43.80 0.1 undecidable manual P 168 14.5743 126 0.09 98
TV.SF01.EHZ. 2019-10-08T19:18:43.28 3.0 negative manual Pn -2.35 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.0 0.0000767 0.24 AML other m 2019-10-08T19:18:46.80
IV.SMA1.EHE. ML:1.1 0.00010400000000000001 1.52 AML other m 2019-10-08T19:18:46.85
IV.SMA1.EHN. ML:1.3 0.00016949999999999997 0.32 AML other m 2019-10-08T19:18:46.96
IV.RM33.EHE. ML:0.7 0.000038350000000000004 0.94 AML other m 2019-10-08T19:18:47.22
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