INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.3 on date 24-09-2018 and time 04:52:52 (Italy) in region 2 km W Castiglione in Teverina (VT)

A magnitude ML 1.3 earthquake occured in region: 2 km W Castiglione in Teverina (VT), on

  • 24-09-2018 02:52:52 (UTC)
  • 24-09-2018 04:52:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.65, 12.18 at 7 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
Castiglione in Teverina VT 2 2329 2329
Baschi TR 4 2722 5051
Civitella d'Agliano VT 5 1640 6691
Lubriano VT 6 909 7600
Bagnoregio VT 7 3650 11250
Porano TR 8 1966 13216
Graffignano VT 9 2292 15508
Montecchio TR 9 1676 17184
Orvieto TR 10 20630 37814
Guardea TR 10 1836 39650
Celleno VT 11 1355 41005
Alviano TR 12 1463 42468
Lugnano in Teverina TR 15 1494 43962
Bolsena VT 16 3991 47953
Montefiascone VT 17 13432 61385
Castel Giorgio TR 17 2131 63516
Attigliano TR 18 2028 65544
Castel Viscardo TR 19 2938 68482
Bomarzo VT 19 1805 70287
Giove TR 20 1928 72215
Vitorchiano VT 20 5233 77448

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Viterbo (67173 inhabitants)
40 Km W of Terni (111501 inhabitants)
54 Km SW of Perugia (166134 inhabitants)
55 Km SW of Foligno (57155 inhabitants)
70 Km NE of Civitavecchia (52991 inhabitants)
85 Km NW of Guidonia Montecelio (88673 inhabitants)
88 Km N of Roma (2864731 inhabitants)
88 Km E of Grosseto (82087 inhabitants)
92 Km NW of Tivoli (56533 inhabitants)
94 Km S of Arezzo (99543 inhabitants)
98 Km N of Fiumicino (78395 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 2018-09-24
02:52:52
42.65 12.18 7 2018-09-24
03:04:21
Sala Sismica INGV-Roma 61262511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-24 02:52:52 ± 0.12
Latitude 42.65 ± 0.01
Longitude 12.18 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61262511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 485
Semi-minor axis of confidence ellipse (meter) 443
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.15473
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 61262511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-24 03:04:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2018-09-24T02:53:16.57 0.1 undecidable manual S 347 0.6961 50 0.62 80
IV.CPGN.EHZ. 2018-09-24T02:53:14.11 0.3 undecidable manual P 5 1.1547 50 0.42 58
IV.TOLF.HHE. 2018-09-24T02:53:13.55 0.6 undecidable manual S 193 0.5998 50 0.44 43
IV.ATTE.HHE. 2018-09-24T02:53:11.46 0.3 undecidable manual S 13 0.5621 50 -0.52 64
IV.ARRO.EHZ. 2018-09-24T02:53:08.39 0.3 undecidable manual S 99 0.438 50 0.1 73
TV.SF04.EHZ. 2018-09-24T02:53:07.35 0.3 undecidable manual S 296 0.4227 50 -0.51 67
TV.SF11.HHZ. 2018-09-24T02:53:07.43 0.6 undecidable manual S 301 0.4263 50 -0.53 44
TV.SF13.HHZ. 2018-09-24T02:53:07.98 0.3 undecidable manual S 292 0.4434 50 -0.48 67
IV.CAFI.HHZ. 2018-09-24T02:53:05.75 0.3 undecidable manual P 347 0.6961 50 -0.09 69
IV.ASSB.HHZ. 2018-09-24T02:53:05.19 3.0 undecidable manual P 0
IV.CESI.HHE. 2018-09-24T02:53:04.94 0.3 undecidable manual P 56 0.6394 50 0.06 70
IV.MOMA.HHZ. 2018-09-24T02:53:04.95 0.3 undecidable manual S 62 0.3265 101 0.1 74
IV.TOLF.HHE. 2018-09-24T02:53:04.19 0.3 undecidable manual P 193 0.5998 50 -0.01 71
IV.MGAB.HHZ. 2018-09-24T02:53:03.14 0.3 undecidable manual S 350 0.2671 104 0.51 69
IV.SACS.HHZ. 2018-09-24T02:53:03.12 0.3 undecidable manual S 315 0.2797 103 0 76
IV.ATTE.HHE. 2018-09-24T02:53:03.10 0.3 undecidable manual P 13 0.5621 50 -0.45 66
OB.GAVE.HNE. 2018-09-24T02:53:03.10 0.3 undecidable manual P 85 0.5279 50 0.14 71
IV.ARRO.EHZ. 2018-09-24T02:53:01.33 0.1 undecidable manual P 99 0.438 50 -0.09 97
IV.MCIV.HHZ. 2018-09-24T02:53:01.10 0.3 undecidable manual P 289 0.3903 50 0.49 67
TV.SF03.EHZ. 2018-09-24T02:53:01.39 0.3 undecidable manual P 293 0.393 50 0.74 61
TV.SF04.EHZ. 2018-09-24T02:53:01.24 0.3 undecidable manual P 296 0.4227 50 0.07 73
TV.SF11.HHZ. 2018-09-24T02:53:01.65 0.3 undecidable manual P 301 0.4263 50 0.42 68
TV.SF13.HHZ. 2018-09-24T02:53:01.67 0.3 undecidable manual P 292 0.4434 50 0.15 72
TV.SF14.HHZ. 2018-09-24T02:53:00.76 0.3 undecidable manual P 284 0.4272 50 -0.48 67
IV.MOMA.HHZ. 2018-09-24T02:52:59.11 0.1 undecidable manual P 62 0.3265 101 -0.32 94
IV.LATE.HHZ. 2018-09-24T02:52:58.29 0.3 undecidable manual P 263 0.2779 103 -0.09 75
IV.SACS.HHZ. 2018-09-24T02:52:58.35 0.1 undecidable manual P 315 0.2797 103 -0.09 100
IV.CESX.HHZ. 2018-09-24T02:52:58.74 0.3 undecidable manual P 98 0.3031 102 -0.2 73
IV.MGAB.HHZ. 2018-09-24T02:52:57.98 0.1 undecidable manual P 350 0.2671 104 -0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
TV.SF04.EHE. ML:1.3 5.9908165E-5 0.2208 AML other m 2018-09-24T02:53:09.76
IV.MGAB.HNN. ML:1.5 0.0001775 0.16 AML other m 2018-09-24T02:53:03.94
IV.SACS.HHE. ML:1.1 6.48E-5 0.68 AML other m 2018-09-24T02:53:04.69
IV.SACS.HHN. ML:1 4.46E-5 1.26 AML other m 2018-09-24T02:53:04.65
IV.MGAB.HNE. ML:1.6 0.000182 0.42 AML other m 2018-09-24T02:53:05.66
IV.MGAB.HHE. ML:1.6 0.000206 0.42 AML other m 2018-09-24T02:53:05.66
IV.MGAB.HHN. ML:1.5 0.000169 0.16 AML other m 2018-09-24T02:53:03.93
IV.SACS.HNN. ML:0.9 3.65185E-5 0.2 AML other m 2018-09-24T02:53:04.02
IV.MOMA.HHE. ML:1.1 5.5540245E-5 0.12 AML other m 2018-09-24T02:53:06.11
TV.SF04.EHN. ML:1.3 5.7340575E-5 0.2192 AML other m 2018-09-24T02:53:08.74
IV.SACS.HNE. ML:1.1 5.329923E-5 0.1808 AML other m 2018-09-24T02:53:03.69
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