Earthquake with magnitude of ML 1.2 on date 23-05-2020 and time 18:59:03 (Italy) in region 4 km E Trevi (PG)

A magnitude ML 1.2 earthquake occured in region: 4 km E Trevi (PG), on

  • 23-05-2020 16:59:03 (UTC)
  • 23-05-2020 18:59:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.89, 12.79 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
Trevi PG 4 8469 8469
Campello sul Clitunno PG 8 2442 10911
Foligno PG 10 57155 68066
Montefalco PG 11 5679 73745
Sellano PG 11 1079 74824
Castel Ritaldi PG 12 3278 78102
Cerreto di Spoleto PG 13 1075 79177
Vallo di Nera PG 15 364 79541
Spello PG 15 8645 88186
Bevagna PG 15 5081 93267
Spoleto PG 18 38218 131485
Sant'Anatolia di Narco PG 18 564 132049
Giano dell'Umbria PG 18 3846 135895
Valtopina PG 19 1398 137293
Gualdo Cattaneo PG 19 6155 143448
Scheggino PG 20 461 143909

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
98 Km SE of Arezzo (99543 inhabitants)
99 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
Reviewed
Rev100
ML 1.2 2020-05-23
16:59:03
42.89 12.79 9 2020-05-23
17:21:11
Sala Sismica INGV-Roma 79487071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-23 16:59:03 ± 0.1
Latitude 42.89 ± 0.00
Longitude 12.79 ± 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 79487071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 528
Semi-minor axis of confidence ellipse (meter) 286
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36423
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 24
Type of magnitude ML
Reference to an origin 79487071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-23 17:21:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2020-05-23T17:00:53.65 3.0 undecidable manual Sg 18.83 0
IV.VARE.HHZ. 2020-05-23T17:00:28.82 3.0 negative manual Pg 23.040001 0
IV.LPDG.HHZ. 2020-05-23T17:00:28.43 3.0 negative manual Pg 19.59 0
IT.VRB.HGZ. 2020-05-23T17:00:22.11 3.0 undecidable manual Pg 14.3 0
IV.LINA.HHZ. 2020-05-23T17:00:21.42 3.0 positive manual Pg 17.780001 0
HL.VLS.HHZ. 2020-05-23T17:00:12.62 3.0 undecidable manual Pn 3.71 0
IT.FIE.HGZ. 2020-05-23T17:00:10.97 3.0 undecidable manual Sg 4.35 0
IV.PIPA.HHZ. 2020-05-23T17:00:02.68 3.0 undecidable manual Sn 0.1 0
IV.MBAL.EHZ. 2020-05-23T17:00:00.72 3.0 undecidable manual Pg 8.76 0
RD.PGF.BHZ. 2020-05-23T16:59:46.24 3.0 undecidable manual Pg 6.89 0
IV.ZCCA.HHZ. 2020-05-23T16:59:41.49 3.0 negative manual Pg 5.52 0
IV.CPGN.EHZ. 2020-05-23T16:59:31.00 3.0 undecidable manual Pg 8.73 0
IV.PZUN.HHZ. 2020-05-23T16:59:26.31 3.0 undecidable manual Sn -3.82 0
IV.RIBO.EHZ.01 2020-05-23T16:59:25.39 3.0 undecidable manual Pg 3 0
IV.CRAC.EHZ. 2020-05-23T16:59:19.72 3.0 negative manual Pg 4.48 0
IV.LNSS.HNE. 2020-05-23T16:59:16.97 0.3 undecidable manual S 147 0.3417 50 0.38 68
IV.ATCC.EHZ. 2020-05-23T16:59:15.86 0.1 undecidable manual S 340 0.313 50 0.12 97
IV.NRCA.HHZ. 2020-05-23T16:59:13.43 0.1 undecidable manual S 103 0.2446 108 0.02 100
IV.FDMO.HHZ. 2020-05-23T16:59:13.77 0.1 undecidable manual S 56 0.2617 107 -0.26 95
IV.ASSB.HHZ. 2020-05-23T16:59:11.05 0.3 undecidable manual S 328 0.179 114 0.02 76
IV.CSP1.EHZ. 2020-05-23T16:59:11.16 0.6 undecidable manual P 56 0.3642 50 -0.27 46
IV.LNSS.HNE. 2020-05-23T16:59:10.77 0.1 undecidable manual P 147 0.3417 50 -0.28 93
IV.CESI.HHZ. 2020-05-23T16:59:10.00 0.1 undecidable manual S 37 0.1412 119 0.26 97
IV.ATCC.EHZ. 2020-05-23T16:59:10.35 1.0 positive manual P 340 0.313 50 -0.21 24
IV.NRCA.HHZ. 2020-05-23T16:59:09.15 0.1 positive manual P 103 0.2446 108 -0.07 99
IV.FDMO.HHZ. 2020-05-23T16:59:09.48 0.6 positive manual P 56 0.2617 107 -0.1 49
IV.MOMA.HHZ. 2020-05-23T16:59:08.04 0.6 positive manual P 242 0.1826 113 0.12 50
IT.MTCL.HGE. 2020-05-23T16:59:08.14 0.3 undecidable manual P 56 0.1853 113 0.18 74
IV.CESI.HHZ. 2020-05-23T16:59:07.25 0.1 negative manual P 37 0.1412 119 0.15 99
IV.ASSB.HHZ. 2020-05-23T16:59:07.39 0.6 positive manual P 328 0.179 114 -0.45 46
IV.LRP.EHZ. 2020-05-23T16:58:53.19 3.0 undecidable manual S -0.4 0
IV.PAOL.HHZ. 2020-05-23T16:58:51.00 3.0 undecidable manual P -0.96 0
IV.RNI2.HHZ. 2020-05-23T16:58:45.14 3.0 undecidable manual P 0.3 0
IV.CERA.HHZ. 2020-05-23T16:58:41.96 3.0 positive manual P -0.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HNE. ML:1.8 2.6067565E-5 0.9856 AML other m 2020-05-23T16:58:44.24
IV.CERA.HHE. ML:1.7 1.846979E-5 0.2688 AML other m 2020-05-23T16:58:44.93
IV.CERA.HHN. ML:1.4 1.241192E-5 0.3968 AML other m 2020-05-23T16:58:47.10
IV.CERA.HNN. ML:2 3.87016325E-5 0.768 AML other m 2020-05-23T16:58:46.68
IV.RNI2.HNE. ML:2.1 5.474045E-5 0.9344 AML other m 2020-05-23T16:58:48.74
IV.RNI2.HHE. ML:1.6 1.4209901825E-5 0.1408 AML other m 2020-05-23T16:58:47.83
IV.PAOL.HHE. ML:1.9 1.445595E-5 0.192 AML other m 2020-05-23T16:58:52.28
IV.CESI.HNN. ML:1.2 0.000165031815 0.192 AML other m 2020-05-23T16:59:10.21
IV.CESI.HHN. ML:1.3 0.00019068625 0.2048 AML other m 2020-05-23T16:59:10.12
IV.CESI.HHE. ML:1 9.859484E-5 0.1152 AML other m 2020-05-23T16:59:10.15
IV.ASSB.HHN. ML:1 8.0912045E-5 0.1664 AML other m 2020-05-23T16:59:11.97
IV.ASSB.HHE. ML:1.2 0.0001211205 0.1664 AML other m 2020-05-23T16:59:11.36
IV.MOMA.HNE. ML:1.2 0.00012298562 0.3712 AML other m 2020-05-23T16:59:13.09
IV.MOMA.HHE. ML:0.9 6.481626E-5 0.2176 AML other m 2020-05-23T16:59:12.82
IV.MOMA.HHN. ML:0.9 5.7826795E-5 0.2432 AML other m 2020-05-23T16:59:13.27
IV.NRCA.HHN. ML:1 5.9840245E-5 0.1152 AML other m 2020-05-23T16:59:15.37
IV.NRCA.HHE. ML:1 5.7195915E-5 0.1792 AML other m 2020-05-23T16:59:16.17
IV.FDMO.HHE. ML:0.8 3.2972125E-5 0.2048 AML other m 2020-05-23T16:59:14.35
IV.FDMO.HHN. ML:0.8 3.0026685E-5 0.1664 AML other m 2020-05-23T16:59:16.94
IV.ATCC.EHE. ML:0.9 3.706806E-5 0.1792 AML other m 2020-05-23T16:59:16.36
IV.ATCC.EHN. ML:1 4.5323095E-5 0.1408 AML other m 2020-05-23T16:59:16.26
IV.CSP1.EHN. ML:0.9 2.6745355E-5 0.2944 AML other m 2020-05-23T16:59:18.61
IV.CSP1.EHE. ML:1 3.538955E-5 0.4352 AML other m 2020-05-23T16:59:19.37
IV.CRAC.EHN. ML:3.5 0.0001698356 0.2688 AML other m 2020-05-23T16:59:37.67
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