Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 27-10-2019 and time 02:02:29 (Italy) in region 2 km NW Civitella d'Agliano (VT)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Civitella d'Agliano (VT), on

  • 27-10-2019 00:02:29 (UTC)
  • 27-10-2019 02:02:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.63, 12.17 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
Civitella d'Agliano VT 2 1640 1640
Castiglione in Teverina VT 3 2329 3969
Lubriano VT 6 909 4878
Baschi TR 6 2722 7600
Bagnoregio VT 6 3650 11250
Graffignano VT 6 2292 13542
Celleno VT 8 1355 14897
Porano TR 9 1966 16863
Guardea TR 10 1836 18699
Montecchio TR 10 1676 20375
Alviano TR 11 1463 21838
Orvieto TR 12 20630 42468
Lugnano in Teverina TR 14 1494 43962
Montefiascone VT 15 13432 57394
Bolsena VT 15 3991 61385
Attigliano TR 16 2028 63413
Bomarzo VT 16 1805 65218
Vitorchiano VT 17 5233 70451
Giove TR 18 1928 72379
Castel Giorgio TR 18 2131 74510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Viterbo (67173 inhabitants)
39 Km W of Terni (111501 inhabitants)
56 Km SW of Perugia (166134 inhabitants)
57 Km SW of Foligno (57155 inhabitants)
67 Km NE of Civitavecchia (52991 inhabitants)
83 Km NW of Guidonia Montecelio (88673 inhabitants)
85 Km NW of Roma (2864731 inhabitants)
88 Km E of Grosseto (82087 inhabitants)
90 Km NW of Tivoli (56533 inhabitants)
95 Km N of Fiumicino (78395 inhabitants)
97 Km S of Arezzo (99543 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 1.3 2019-10-27
00:02:29		 42.63 12.17 11 2019-10-27
00:14:06		 Sala Sismica INGV-Roma 73463051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-27 00:02:29 ± 0.22
Latitude 42.63 ± 0.00
Longitude 12.17 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73463051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 43
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 73463051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-27 00:14:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MODR.HHZ. 2019-10-27T00:03:05.40 3.0 undecidable manual Pg 0.5 0
IV.TOLF.HHZ. 2019-10-27T00:02:48.63 0.3 undecidable manual S 193 0.5765 50 0.07 70
IV.ATTE.HHZ. 2019-10-27T00:02:48.99 0.1 undecidable manual S 13 0.5864 50 0.12 92
IV.SRES.HHZ. 2019-10-27T00:02:45.21 0.3 undecidable manual S 147 0.4614 50 0.05 72
TV.SF04.EHZ. 2019-10-27T00:02:44.83 0.3 undecidable manual S 299 0.4317 50 0.56 64
TV.SF13.HHZ. 2019-10-27T00:02:44.44 0.3 undecidable manual S 295 0.4506 50 -0.39 67
IV.BARO.EHZ. 2019-10-27T00:02:43.19 0.1 undecidable manual S 194 0.3885 50 0.19 95
TV.SF14.HHZ. 2019-10-27T00:02:43.92 0.3 undecidable manual S 288 0.4308 50 -0.33 68
IV.MOMA.HHZ. 2019-10-27T00:02:42.00 0.3 undecidable manual S 58 0.3408 50 0.41 68
IV.MGAB.HHZ. 2019-10-27T00:02:40.07 0.1 undecidable manual S 351 0.2896 50 -0.01 100
IV.ATTE.HHZ. 2019-10-27T00:02:40.51 0.1 undecidable manual P 13 0.5864 50 0.03 94
IV.CESX.HHZ. 2019-10-27T00:02:40.08 0.3 undecidable manual S 93 0.304 50 -0.42 69
IV.SACS.HHZ. 2019-10-27T00:02:40.35 0.6 undecidable manual S 319 0.2959 50 0.1 49
IV.TOLF.HHZ. 2019-10-27T00:02:40.45 0.3 undecidable manual P 193 0.5765 50 0.15 69
IV.LATE.HHZ. 2019-10-27T00:02:39.28 0.1 undecidable manual S 268 0.2725 50 -0.28 95
TV.SF13.HHZ. 2019-10-27T00:02:38.21 0.3 undecidable manual P 295 0.4506 50 0.06 72
TV.SF04.EHZ. 2019-10-27T00:02:38.30 0.1 undecidable manual P 299 0.4317 50 0.47 88
IV.SRES.HHZ. 2019-10-27T00:02:38.18 0.3 undecidable manual P 147 0.4614 50 -0.16 70
TV.SF14.HHZ. 2019-10-27T00:02:37.35 0.3 undecidable manual P 288 0.4308 50 -0.46 66
IV.BARO.EHZ. 2019-10-27T00:02:37.14 0.1 undecidable manual P 194 0.3885 50 0.05 97
IV.MOMA.HHZ. 2019-10-27T00:02:35.97 0.1 undecidable manual P 58 0.3408 50 -0.31 93
IV.MGAB.HHZ. 2019-10-27T00:02:35.30 0.1 undecidable manual P 351 0.2896 50 -0.11 98
IV.CESX.HHZ. 2019-10-27T00:02:35.66 0.3 undecidable manual P 93 0.304 50 0.01 75
IV.SACS.HHZ. 2019-10-27T00:02:35.61 0.3 undecidable manual P 319 0.2959 50 0.11 74
IV.LATE.HHZ. 2019-10-27T00:02:35.19 0.1 undecidable manual P 268 0.2725 50 0.08 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHE. ML:1.4 0.0001275 0.3 AML other m 2019-10-27T00:02:40.78
IV.MGAB.HHN. ML:1.5 0.00013 0.38 AML other m 2019-10-27T00:02:41.15
IV.MGAB.HHE. ML:1.5 0.0001295 0.12 AML other m 2019-10-27T00:02:41.65
IV.MGAB.HNE. ML:1.4 0.00011535 0.12 AML other m 2019-10-27T00:02:41.66
IV.LATE.HHN. ML:1.6 0.000186 1.4 AML other m 2019-10-27T00:02:41.83
IV.MGAB.HNN. ML:1.5 0.00013 0.88 AML other m 2019-10-27T00:02:41.41
IV.SACS.HHE. ML:0.9 3.45E-5 0.74 AML other m 2019-10-27T00:02:42.87
IV.SACS.HHN. ML:0.9 3.3E-5 0.66 AML other m 2019-10-27T00:02:43.56
IV.MOMA.HHN. ML:1 3.515E-5 0.8 AML other m 2019-10-27T00:02:43.15
IV.MOMA.HHE. ML:1.1 4.395E-5 0.76 AML other m 2019-10-27T00:02:44.44
TV.SF04.EHE. ML:1.3 5.367419E-5 0.24 AML other m 2019-10-27T00:02:45.84
TV.SF04.EHN. ML:1.1 3.329004E-5 0.2 AML other m 2019-10-27T00:02:47.15
IV.ATTE.HHE. ML:1.1 2.4471195E-5 0.38 AML other m 2019-10-27T00:02:54.29
IV.ATTE.HHN. ML:1.1 2.586001E-5 0.32 AML other m 2019-10-27T00:02:53.22
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