Earthquake with magnitude of ML 1.2 on date 11-08-2019 and time 06:46:25 (Italy) in region 4 km SW Arrone (TR)

A magnitude ML 1.2 earthquake occured in region: 4 km SW Arrone (TR), on

  • 11-08-2019 04:46:25 (UTC)
  • 11-08-2019 06:46:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.56, 12.74 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arrone TR 4 2763 2763
Montefranco TR 5 1276 4039
Labro RI 6 374 4413
Colli sul Velino RI 7 533 4946
Terni TR 8 111501 116447
Ferentillo TR 8 1913 118360
Morro Reatino RI 8 373 118733
Polino TR 9 233 118966
Stroncone TR 9 4917 123883
Rivodutri RI 10 1253 125136
Greccio RI 12 1558 126694
Poggio Bustone RI 13 2055 128749
Cantalice RI 17 2755 131504
Contigliano RI 17 3783 135287
Configni RI 17 633 135920
San Gemini TR 17 5018 140938
Cottanello RI 18 563 141501
Leonessa RI 18 2435 143936
Scheggino PG 19 461 144397
Narni TR 19 19785 164182
Spoleto PG 20 38218 202400
Rieti RI 20 47698 250098
Montasola RI 20 395 250493
Monteleone di Spoleto PG 20 599 251092

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of Terni (111501 inhabitants)
44 Km S of Foligno (57155 inhabitants)
55 Km E of Viterbo (67173 inhabitants)
59 Km W of L'Aquila (69753 inhabitants)
62 Km N of Guidonia Montecelio (88673 inhabitants)
66 Km N of Tivoli (56533 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
77 Km N of Roma (2864731 inhabitants)
80 Km W of Teramo (54892 inhabitants)
94 Km NE of Civitavecchia (52991 inhabitants)
97 Km NE of Fiumicino (78395 inhabitants)
97 Km N of Velletri (53303 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 1.2 2019-08-11
04:46:25
42.56 12.74 10 2019-11-13
14:31:06
Bollettino Sismico Italiano INGV 73269771
Reviewed
Rev100
ML 1.2 2019-08-11
04:46:25
42.56 12.75 10 2019-08-11
05:00:37
Sala Sismica INGV-Roma 71370281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-11 04:46:25 ± 0.05
Latitude 42.56 ± 0.00
Longitude 12.74 ± 0.00
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 73269771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 295
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) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.63492
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 73269771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-15 13:26:29

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 71370281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-11 05:00:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CERT.HHZ. 2019-08-11T04:46:47.50 0.6 undecidable manual S 164 0.6349 50 0.3 43
IV.FDMO.HHZ. 2019-08-11T04:46:44.75 0.6 undecidable manual S 28 0.5396 50 0.4 43
IV.ASSB.HHZ. 2019-08-11T04:46:43.34 0.6 undecidable manual S 353 0.4865 50 0.54 41
IV.SMA1.EHZ. 2019-08-11T04:46:42.03 0.6 undecidable manual S 81 0.4416 50 0.58 41
IV.FIAM.HHZ. 2019-08-11T04:46:40.16 0.6 undecidable manual S 136 0.4011 50 -0.11 47
IV.NRCA.HHZ. 2019-08-11T04:46:39.64 0.6 undecidable manual S 45 0.3858 50 -0.18 46
IV.RM33.EHZ. 2019-08-11T04:46:38.88 0.6 undecidable manual S 98 0.3507 50 0.11 47
IV.CERT.HHZ. 2019-08-11T04:46:37.97 0.3 undecidable manual P 164 0.6349 50 -0.17 66
IV.FDMO.HHZ. 2019-08-11T04:46:36.40 0.1 undecidable manual P 28 0.5396 50 -0.09 91
IV.MOMA.HHZ. 2019-08-11T04:46:36.36 0.6 undecidable manual S 333 0.2752 50 -0.18 47
IT.GNU.HGE. 2019-08-11T04:46:36.55 0.6 undecidable manual S 333 0.2752 50 0.02 49
IV.ASSB.HHZ. 2019-08-11T04:46:35.47 0.1 undecidable manual P 353 0.4865 50 -0.12 91
IV.LNSS.HHZ. 2019-08-11T04:46:34.64 0.6 undecidable manual S 79 0.223 50 -0.34 46
IV.FIAM.HHZ. 2019-08-11T04:46:34.07 0.3 undecidable manual P 136 0.4011 50 -0.06 70
IV.SMA1.EHZ. 2019-08-11T04:46:34.93 0.3 undecidable manual P 81 0.4416 50 0.11 69
IV.NRCA.HHZ. 2019-08-11T04:46:33.70 0.1 undecidable manual P 45 0.3858 50 -0.18 92
IV.GAVE.EHZ. 2019-08-11T04:46:33.10 0.6 undecidable manual S 40 0.1727 118 -0.22 48
IV.RM33.EHZ. 2019-08-11T04:46:33.15 0.1 undecidable manual P 98 0.3507 50 -0.12 94
IT.GNU.HGE. 2019-08-11T04:46:32.14 0.3 undecidable manual P 333 0.2752 50 0.16 71
IV.LNSS.HHZ. 2019-08-11T04:46:31.03 0.1 negative manual P 79 0.223 50 -0.05 97
IV.CESX.HHZ. 2019-08-11T04:46:31.65 0.6 undecidable manual S 293 0.125 127 -0.11 49
IV.MOMA.HHZ. 2019-08-11T04:46:31.82 0.1 undecidable manual P 333 0.2752 50 -0.16 94
IV.GAVE.EHZ. 2019-08-11T04:46:30.18 0.1 undecidable manual P 40 0.1727 118 0.06 98
IT.TRN1.HGN. 2019-08-11T04:46:30.14 0.6 undecidable manual S 269 0.0719 142 -0.14 49
IV.ARRO.EHZ. 2019-08-11T04:46:29.38 0.6 undecidable manual S 40 0.0252 165 -0.09 50
IV.CESX.HHZ. 2019-08-11T04:46:29.24 0.1 undecidable manual P 293 0.125 127 0.02 100
IV.ARRO.EHZ. 2019-08-11T04:46:28.16 0.1 positive manual P 40 0.0252 165 0.26 97
IT.TRN1.HGN. 2019-08-11T04:46:28.52 0.1 undecidable manual P 269 0.0719 142 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.3 0.0003775 0.68 AML other m 2019-08-11T04:46:30.46
IV.ARRO.EHE. ML:1.1 0.0002175 0.48 AML other m 2019-08-11T04:46:30.83
IV.CESX.HHN. ML:1.1 0.000132 0.12 AML other m 2019-08-11T04:46:32.10
IV.CESX.HHE. ML:1.2 0.0001415 0.32 AML other m 2019-08-11T04:46:33.02
IV.GAVE.EHN. ML:1.8 0.0005275 0.32 AML other m 2019-08-11T04:46:33.27
IV.GAVE.EHE. ML:1.6 0.0002925 1.18 AML other m 2019-08-11T04:46:33.40
IV.LNSS.HHN. ML:1.9 0.000532 0.9 AML other m 2019-08-11T04:46:35.06
IV.LNSS.HHE. ML:1.8 0.0003565 1.48 AML other m 2019-08-11T04:46:35.22
IV.MOMA.HHE. ML:1.4 0.00011335 0.32 AML other m 2019-08-11T04:46:36.71
IV.MOMA.HHN. ML:1.5 0.000135 1.32 AML other m 2019-08-11T04:46:37.89
IV.RM33.EHE. ML:1 3.725E-5 0.14 AML other m 2019-08-11T04:46:39.18
IV.RM33.EHN. ML:0.8 2.275E-5 0.68 AML other m 2019-08-11T04:46:39.85
IV.NRCA.HHE. ML:1.5 0.0001051 0.14 AML other m 2019-08-11T04:46:39.87
IV.FIAM.HHN. ML:0.5 1.0195E-5 0.74 AML other m 2019-08-11T04:46:40.52
IV.NRCA.HHN. ML:1.4 8.625E-5 0.84 AML other m 2019-08-11T04:46:41.45
IV.FIAM.HHE. ML:0.5 9.395E-6 1.36 AML other m 2019-08-11T04:46:41.05
IV.SMA1.EHN. ML:1.2 3.81E-5 0.54 AML other m 2019-08-11T04:46:42.21
IV.SMA1.EHE. ML:1.2 3.905E-5 0.94 AML other m 2019-08-11T04:46:44.49
IV.ASSB.HHE. ML:0.8 1.7E-5 1.66 AML other m 2019-08-11T04:46:44.85
IV.ASSB.HHN. ML:0.9 1.83E-5 0.52 AML other m 2019-08-11T04:46:45.08
IV.FDMO.HHE. ML:1.2 2.92E-5 0.14 AML other m 2019-08-11T04:46:45.22
IV.FDMO.HHN. ML:1 2.105E-5 0.98 AML other m 2019-08-11T04:46:45.91
IV.CERT.HHE. ML:1 1.58E-5 0.44 AML other m 2019-08-11T04:46:49.33
IV.CERT.HHN. ML:1 1.43E-5 0.48 AML other m 2019-08-11T04:46:49.58
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