Earthquake with magnitude of ML 1.0 on date 22-10-2019 and time 04:18:56 (Italy) in region 3 km SW Terni (TR)

A magnitude ML 1.0 earthquake occured in region: 3 km SW Terni (TR), on

  • 22-10-2019 02:18:56 (UTC)
  • 22-10-2019 04:18:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.54, 12.62 at 9 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
Terni TR 3 111501 111501
Stroncone TR 6 4917 116418
Narni TR 9 19785 136203
San Gemini TR 10 5018 141221
Configni RI 13 633 141854
Arrone TR 13 2763 144617
Montefranco TR 14 1276 145893
Colli sul Velino RI 14 533 146426
Labro RI 15 374 146800
Greccio RI 15 1558 148358
Cottanello RI 16 563 148921
Calvi dell'Umbria TR 16 1856 150777
Montecastrilli TR 17 5022 155799
Ferentillo TR 17 1913 157712
Vacone RI 17 256 157968
Morro Reatino RI 17 373 158341
Amelia TR 17 11897 170238
Otricoli TR 18 1869 172107
Montasola RI 18 395 172502
Acquasparta TR 18 4778 177280
Contigliano RI 19 3783 181063
Polino TR 19 233 181296
Rivodutri RI 19 1253 182549
Montebuono RI 19 883 183432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km SW of Terni (111501 inhabitants)
45 Km E of Viterbo (67173 inhabitants)
47 Km S of Foligno (57155 inhabitants)
61 Km N of Guidonia Montecelio (88673 inhabitants)
66 Km N of Tivoli (56533 inhabitants)
66 Km S of Perugia (166134 inhabitants)
67 Km W of L'Aquila (69753 inhabitants)
73 Km N of Roma (2864731 inhabitants)
84 Km NE of Civitavecchia (52991 inhabitants)
90 Km W of Teramo (54892 inhabitants)
91 Km NE of Fiumicino (78395 inhabitants)
96 Km N of Velletri (53303 inhabitants)
97 Km N of Pomezia (62966 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
Rev 100 ML 1.0 2019-10-22
02:18:56
42.54 12.62 9 2019-10-22
02:33:04
Sala Sismica INGV-Roma 73383451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-22 02:18:56 ± 0.26
Latitude 42.54 ± 0.01
Longitude 12.62 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73383451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1713
Semi-minor axis of confidence ellipse (meter) 675
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 1710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 259
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 16
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) 0.5324
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 73383451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-22 02:33:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COR1.EHZ. 2019-10-22T02:19:16.15 3.0 undecidable manual P -1.73 0
IV.SMA1.EHZ. 2019-10-22T02:19:15.21 0.3 undecidable manual S 80 0.5324 50 0.34 64
IV.ASSB.HHZ. 2019-10-22T02:19:14.42 0.6 undecidable manual S 3 0.5027 50 0.42 42
IV.NRCA.HHZ. 2019-10-22T02:19:12.68 0.3 undecidable manual S 51 0.4649 50 -0.2 67
IT.LATE.HHZ. 2019-10-22T02:19:12.68 3.0 undecidable manual P 0
IT.BARO.EHZ. 2019-10-22T02:19:09.23 3.0 undecidable manual P 0
IV.LNSS.HHZ. 2019-10-22T02:19:07.92 0.3 undecidable manual S 78 0.3139 50 -0.48 65
IV.SMA1.EHZ. 2019-10-22T02:19:07.50 0.3 undecidable manual P 80 0.5324 50 0.5 62
IV.MOMA.HHZ. 2019-10-22T02:19:06.79 0.3 undecidable manual S 352 0.2662 50 -0.2 69
IV.ASSB.HHZ. 2019-10-22T02:19:06.85 0.6 undecidable manual P 3 0.5027 50 0.35 43
IV.NRCA.HHZ. 2019-10-22T02:19:05.75 0.3 undecidable manual P 51 0.4649 50 -0.1 68
IV.LNSS.HHZ. 2019-10-22T02:19:03.08 0.6 undecidable manual P 78 0.3139 50 -0.19 46
IV.MOMA.HHZ. 2019-10-22T02:19:02.26 0.1 undecidable manual P 352 0.2662 50 -0.19 93
IV.SRES.HHZ. 2019-10-22T02:19:02.98 3.0 negative manual P 0.09 0
IV.ARRO.EHZ. 2019-10-22T02:19:01.80 0.3 undecidable manual S 70 0.1124 127 0.16 72
IV.CESX.HHZ. 2019-10-22T02:19:00.66 0.3 undecidable manual S 339 0.0728 139 0.13 73
IV.CESX.HHZ. 2019-10-22T02:18:59.03 1.0 positive manual P 339 0.0728 139 0.31 23
IV.ARRO.EHZ. 2019-10-22T02:18:59.52 0.3 undecidable manual P 70 0.1124 127 0.16 72
IT.TRN1.HGZ. 2019-10-22T02:18:58.99 0.6 undecidable manual S 44 0.0252 164 -0.62 43
IT.TRN1.HGZ. 2019-10-22T02:18:58.14 0.1 undecidable manual P 44 0.0252 164 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHE. ML:1 0.00015873765 0.2816 AML other m 2019-10-22T02:19:02.44
IV.CESX.HHN. ML:1.3 0.00028752105 0.36 AML other m 2019-10-22T02:19:00.84
IV.ARRO.EHE. ML:1 0.00011221525 0.2816 AML other m 2019-10-22T02:19:02.79
IV.ARRO.EHN. ML:1.2 0.0001666927 0.3408 AML other m 2019-10-22T02:19:02.83
IV.MOMA.HHE. ML:1.3 9.461809E-5 0.2 AML other m 2019-10-22T02:19:08.26
IV.MOMA.HHN. ML:1.1 6.4504095E-5 0.16 AML other m 2019-10-22T02:19:08.84
IV.MOMA.HNE. ML:1.4 0.00011023205 0.2896 AML other m 2019-10-22T02:19:06.87
IV.SRES.HHE. ML:0.7 2.1674675E-5 0.1808 AML other m 2019-10-22T02:19:09.94
IV.SRES.HHN. ML:0.6 1.40874015E-5 0.16 AML other m 2019-10-22T02:19:11.19
IV.LNSS.HHE. ML:1.2 6.1702295E-5 0.16 AML other m 2019-10-22T02:19:08.59
IV.LNSS.HHN. ML:1.1 5.6792955E-5 0.1792 AML other m 2019-10-22T02:19:08.83
IV.NRCA.HHE. ML:1.1 2.9615435E-5 0.1392 AML other m 2019-10-22T02:19:13.50
IV.NRCA.HHN. ML:1 2.294319E-5 0.1008 AML other m 2019-10-22T02:19:14.52
IV.SMA1.EHE. ML:0.8 1.594958E-5 0.4208 AML other m 2019-10-22T02:19:17.84
IV.SMA1.EHN. ML:0.7 1.10162375E-5 0.1184 AML other m 2019-10-22T02:19:16.37
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