Earthquake with magnitude of ML 1.5 on date 15-05-2020 and time 18:06:31 (Italy) in region 3 km SW Castel Giorgio (TR)

A magnitude ML 1.5 earthquake occured in region: 3 km SW Castel Giorgio (TR), on

  • 15-05-2020 16:06:31 (UTC)
  • 15-05-2020 18:06:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.68, 11.97 at 10 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
Castel Giorgio TR 3 2131 2131
Bolsena VT 4 3991 6122
San Lorenzo Nuovo VT 5 2091 8213
Grotte di Castro VT 8 2683 10896
Castel Viscardo TR 9 2938 13834
Gradoli VT 10 1353 15187
Acquapendente VT 11 5506 20693
Porano TR 11 1966 22659
Bagnoregio VT 12 3650 26309
Orvieto TR 12 20630 46939
Lubriano VT 13 909 47848
Onano VT 13 995 48843
Latera VT 13 836 49679
Proceno VT 14 557 50236
Allerona TR 15 1794 52030
Capodimonte VT 15 1731 53761
Marta VT 16 3499 57260
Montefiascone VT 17 13432 70692
Valentano VT 17 2868 73560
Celleno VT 19 1355 74915
Ficulle TR 19 1669 76584
Castiglione in Teverina VT 20 2329 78913
Civitella d'Agliano VT 20 1640 80553

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Viterbo (67173 inhabitants)
57 Km W of Terni (111501 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
67 Km N of Civitavecchia (52991 inhabitants)
68 Km W of Foligno (57155 inhabitants)
70 Km E of Grosseto (82087 inhabitants)
88 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
97 Km NW of Roma (2864731 inhabitants)
98 Km NW of Guidonia Montecelio (88673 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
Reviewed
Rev100
ML 1.5 2020-05-15
16:06:31
42.68 11.97 10 2020-05-15
16:18:28
Sala Sismica INGV-Roma 79166541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-15 16:06:31 ± 0.1
Latitude 42.68 ± 0.00
Longitude 11.97 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79166541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 563
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 142
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.1376
Epicentral distance of station farthest from the epicenter (degree) 0.45865
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 79166541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-15 16:18:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARCI.HNE. 2020-05-15T16:06:46.64 0.6 undecidable manual S 296 0.4002 50 0.53 43
TV.SF01.EHZ. 2020-05-15T16:06:44.12 0.6 undecidable manual S 294 0.3247 50 0.24 47
TV.SF14.HHN. 2020-05-15T16:06:42.29 0.6 undecidable manual S 286 0.2698 50 0.03 49
IV.MGAB.HHZ. 2020-05-15T16:06:42.18 0.6 undecidable manual S 24 0.2554 50 0.35 46
TV.SF13.HHZ. 2020-05-15T16:06:42.63 0.6 undecidable manual S 299 0.2905 50 -0.24 47
IV.MCIV.CHZ. 2020-05-15T16:06:41.26 0.6 undecidable manual S 295 0.2356 50 0.03 49
IV.MOMA.HHZ. 2020-05-15T16:06:41.18 0.6 undecidable manual P 74 0.4587 50 0.17 46
TV.SF04.EHZ. 2020-05-15T16:06:41.87 0.6 undecidable manual S 305 0.2743 50 -0.51 44
IV.ARCI.HNE. 2020-05-15T16:06:40.45 0.6 undecidable manual P 296 0.4002 50 0.45 44
IV.BARO.EHE. 2020-05-15T16:06:40.55 0.6 undecidable manual P 172 0.4362 50 -0.07 47
IV.SACS.HHZ. 2020-05-15T16:06:39.30 0.3 undecidable manual S 346 0.1745 118 0.04 75
TV.SF13.HHZ. 2020-05-15T16:06:38.02 0.1 undecidable manual P 299 0.2905 50 -0.11 96
TV.SF01.EHZ. 2020-05-15T16:06:38.81 0.3 undecidable manual P 294 0.3247 50 0.1 72
IV.MCIV.CHZ. 2020-05-15T16:06:37.19 0.3 undecidable manual P 295 0.2356 50 0.01 74
TV.SF04.EHZ. 2020-05-15T16:06:37.71 0.1 undecidable manual P 305 0.2743 50 -0.13 96
TV.SF14.HHN. 2020-05-15T16:06:37.61 0.3 undecidable manual P 286 0.2698 50 -0.17 72
IV.MGAB.HHZ. 2020-05-15T16:06:37.26 0.1 undecidable manual P 24 0.2554 50 -0.26 94
IV.LATE.HHZ. 2020-05-15T16:06:37.97 0.6 undecidable manual S 241 0.1376 124 -0.08 50
IV.SACS.HHZ. 2020-05-15T16:06:36.01 0.1 positive manual P 346 0.1745 118 -0.03 100
IV.LATE.HHZ. 2020-05-15T16:06:35.46 0.1 undecidable manual P 241 0.1376 124 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHE. ML:1.7 0.0004352161 0.3584 AML other m 2020-05-15T16:06:39.16
IV.LATE.HHN. ML:1.7 0.00050497245 0.1536 AML other m 2020-05-15T16:06:39.93
IV.SACS.HHE. ML:1.7 0.0004170385 0.1792 AML other m 2020-05-15T16:06:40.18
IV.SACS.HHN. ML:1.3 0.0001633023 0.1408 AML other m 2020-05-15T16:06:39.57
IV.SACS.HNE. ML:1.7 0.00040770545 0.1664 AML other m 2020-05-15T16:06:40.19
IV.SACS.HNN. ML:1.4 0.00018978135 0.2432 AML other m 2020-05-15T16:06:40.93
IV.MCIV.CHE. ML:1.1 6.9301545E-5 0.1664 AML other m 2020-05-15T16:06:41.41
IV.MCIV.CHN. ML:1 6.0026265E-5 0.192 AML other m 2020-05-15T16:06:41.78
IV.MGAB.HHE. ML:1.3 0.000105928005 0.2176 AML other m 2020-05-15T16:06:42.89
IV.MGAB.HHN. ML:1.3 9.884146E-5 0.1536 AML other m 2020-05-15T16:06:44.85
IV.MGAB.HNE. ML:1.4 0.00011808405 0.192 AML other m 2020-05-15T16:06:43.35
IV.MGAB.HNN. ML:1.3 9.974012E-5 0.1536 AML other m 2020-05-15T16:06:44.85
TV.SF04.EHE. ML:1.5 0.00015332695 0.2304 AML other m 2020-05-15T16:06:42.74
TV.SF04.EHN. ML:1.6 0.0001940794 0.1152 AML other m 2020-05-15T16:06:43.76
TV.SF01.EHE. ML:1.4 0.000100347065 0.3456 AML other m 2020-05-15T16:06:48.13
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