Earthquake with magnitude of ML 1.0 on date 16-05-2018 and time 06:34:13 (Italy) in region 2 km W Montefalco (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km W Montefalco (PG), on

  • 16-05-2018 04:34:13 (UTC)
  • 16-05-2018 06:34:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 12.63 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
Montefalco PG 2 5679 5679
Bevagna PG 5 5081 10760
Gualdo Cattaneo PG 6 6155 16915
Giano dell'Umbria PG 8 3846 20761
Castel Ritaldi PG 9 3278 24039
Foligno PG 9 57155 81194
Trevi PG 10 8469 89663
Spello PG 11 8645 98308
Cannara PG 12 4305 102613
Campello sul Clitunno PG 15 2442 105055
Collazzone PG 16 3473 108528
Massa Martana PG 16 3770 112298
Bettona PG 18 4367 116665
Assisi PG 20 28299 144964
Deruta PG 20 9669 154633
Spoleto PG 20 38218 192851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SW of Foligno (57155 inhabitants)
31 Km SE of Perugia (166134 inhabitants)
37 Km N of Terni (111501 inhabitants)
68 Km NE of Viterbo (67173 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
92 Km W of Teramo (54892 inhabitants)
100 Km N 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
Rev 100 ML 1.0 2018-05-16
04:34:13
42.9 12.63 9 2018-05-16
04:46:30
Sala Sismica INGV-Roma 56910821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-16 04:34:13 ± 0.09
Latitude 42.90 ± 0.00
Longitude 12.63 ± 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 56910821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 720
Semi-minor axis of confidence ellipse (meter) 89
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28958
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 56910821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-16 04:46:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2018-05-16T04:35:28.44 3.0 undecidable manual Sg 13.58 0
IV.ZONE.HHZ. 2018-05-16T04:35:23.74 3.0 undecidable manual Sg 4.16 0
IV.CAFE.HHZ. 2018-05-16T04:35:23.51 3.0 undecidable manual Sn -2.81 0
CR.STON.BHZ. 2018-05-16T04:35:02.40 3.0 positive manual Pn 1.02 0
IV.ACER.HHZ. 2018-05-16T04:34:57.43 3.0 negative manual Pn 2.86 0
IV.SBPO.HNZ. 2018-05-16T04:34:56.50 3.0 undecidable manual Sn -1.75 0
IV.SENI.HNZ. 2018-05-16T04:34:38.00 3.0 undecidable manual S 1.5 0
OB.GAVE.HNN. 2018-05-16T04:34:25.00 0.3 undecidable manual S 136 0.2797 50 0.12 72
IV.ATCC.EHZ. 2018-05-16T04:34:25.17 0.3 undecidable manual S 1 0.2896 50 0.01 73
IV.CESX.HHE. 2018-05-16T04:34:24.95 0.3 undecidable manual S 187 0.2887 50 -0.19 70
IV.SAMA.HHZ. 2018-05-16T04:34:23.15 3.0 undecidable manual P 1.8 0
IV.CESX.HHE. 2018-05-16T04:34:21.05 0.3 undecidable manual P 187 0.2887 50 0.76 60
IV.T1221.EHZ. 2018-05-16T04:34:20.60 0.3 undecidable manual S 102 0.1619 117 -0.04 75
IV.ATCC.EHZ. 2018-05-16T04:34:20.04 0.1 undecidable manual P 1 0.2896 50 -0.26 93
IV.ROM9.HNZ. 2018-05-16T04:34:20.73 3.0 positive manual Pn 0.29 0
IV.ASSB.HHZ. 2018-05-16T04:34:20.37 0.3 undecidable manual S 8 0.1484 119 0.19 72
OB.GAVE.HNN. 2018-05-16T04:34:19.94 0.3 undecidable manual P 136 0.2797 50 -0.2 70
IV.MOMA.HHZ. 2018-05-16T04:34:18.66 0.3 undecidable manual S 206 0.1025 129 -0.04 75
IV.ASSB.HHZ. 2018-05-16T04:34:17.45 0.1 undecidable manual P 8 0.1484 119 0.02 100
IV.T1221.EHZ. 2018-05-16T04:34:17.67 0.1 undecidable manual P 102 0.1619 117 -0.02 100
IV.CSNT.HHZ. 2018-05-16T04:34:16.56 3.0 undecidable manual S -0.52 0
IV.APEC.HHZ. 2018-05-16T04:34:16.88 3.0 undecidable manual S -2.96 0
IV.MOMA.HHZ. 2018-05-16T04:34:16.47 0.1 undecidable manual P 206 0.1025 129 -0.1 99
IV.CPGN.EHZ. 2018-05-16T04:34:12.88 3.0 undecidable manual P 0.41 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.1 0.0001505 0.16 AML other m 2018-05-16T04:34:19.68
IV.MOMA.HHE. ML:1.4 0.000325 0.88 AML other m 2018-05-16T04:34:20.58
IV.ASSB.HHN. ML:0.8 6.58E-5 0.52 AML other m 2018-05-16T04:34:20.98
IV.ASSB.HHE. ML:0.9 6.805E-5 0.64 AML other m 2018-05-16T04:34:21.55
IV.CPGN.EHE. ML:1.8 5.75E-5 1.58 AML other m 2018-05-16T04:34:30.13
IV.CPGN.EHN. ML:2 8.275E-5 0.42 AML other m 2018-05-16T04:34:30.57
IV.APEC.HHE. ML:1.7 8.075E-5 0.06 AML other m 2018-05-16T04:34:30.67
IV.APEC.HHN. ML:1.8 8.9E-5 1.04 AML other m 2018-05-16T04:34:30.69
IV.ROM9.HNN. ML:3 0.0008825 0.06 AML other m 2018-05-16T04:34:30.79
IV.ROM9.HNE. ML:3.1 0.00092 0.86 AML other m 2018-05-16T04:34:31.24
IV.SBPO.HNN. ML:3.8 0.001063 1.08 AML other m 2018-05-16T04:34:43.98
IV.SBPO.HNE. ML:4.2 0.002455 0.06 AML other m 2018-05-16T04:34:58.65
IV.ACER.HNN. ML:4.2 0.0011475 1.16 AML other m 2018-05-16T04:35:17.08
IV.ACER.HNE. ML:3.9 0.000683 1.46 AML other m 2018-05-16T04:35:17.08
IV.ZONE.HHE. ML:3.1 7.84E-5 1.34 AML other m 2018-05-16T04:35:28.16
IV.ZONE.HHN. ML:3 6.905E-5 0.28 AML other m 2018-05-16T04:35:29.29
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