Earthquake with magnitude of ML 1.0 on date 04-07-2020 and time 02:22:24 (Italy) in region 4 km W Campello sul Clitunno (PG)

A magnitude ML 1.0 earthquake occured in region: 4 km W Campello sul Clitunno (PG), on

  • 04-07-2020 00:22:24 (UTC)
  • 04-07-2020 02:22:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.82, 12.73 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
Campello sul Clitunno PG 4 2442 2442
Castel Ritaldi PG 5 3278 5720
Trevi PG 7 8469 14189
Spoleto PG 9 38218 52407
Montefalco PG 11 5679 58086
Vallo di Nera PG 12 364 58450
Giano dell'Umbria PG 12 3846 62296
Sant'Anatolia di Narco PG 13 564 62860
Scheggino PG 14 461 63321
Cerreto di Spoleto PG 15 1075 64396
Foligno PG 16 57155 121551
Bevagna PG 16 5081 126632
Massa Martana PG 17 3770 130402
Gualdo Cattaneo PG 18 6155 136557
Sellano PG 18 1079 137636

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Foligno (57155 inhabitants)
29 Km N of Terni (111501 inhabitants)
43 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
82 Km W of Teramo (54892 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
100 Km SE 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
Reviewed
Rev100
ML 1.0 2020-07-04
00:22:24
42.82 12.73 9 2020-07-04
00:32:44
Sala Sismica INGV-Roma 80750301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-04 00:22:24 ± 0.06
Latitude 42.82 ± 0.00
Longitude 12.73 ± 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 80750301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 18
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
Epicentral distance of station farthest from the epicenter (degree) 0.44426
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80750301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-04 00:32:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.ACOM.HHZ. 2020-07-04T00:24:00.60 3.0 undecidable manual Sn -1.7 0
GU.ENR.HHZ. 2020-07-04T00:23:53.10 3.0 undecidable manual Sn 2.69 0
IV.ECTS.HHZ. 2020-07-04T00:23:51.86 3.0 undecidable manual Pg 24.690001 0
IV.GALF.HHZ. 2020-07-04T00:23:50.40 3.0 negative manual Pg 23.610001 0
OX.MPRI.HHZ. 2020-07-04T00:23:47.08 3.0 undecidable manual Sn -5.92 0
IV.VULT.HHZ. 2020-07-04T00:23:44.42 3.0 undecidable manual Sn 7.47 0
IV.ROSPO.HHZ. 2020-07-04T00:23:14.61 3.0 undecidable manual Sn -0.71 0
IV.MTRZ.HHZ. 2020-07-04T00:22:43.72 3.0 undecidable manual Pg 1.36 0
IV.CSP1.EHZ. 2020-07-04T00:22:40.49 0.6 undecidable manual S 51 0.4443 50 0.12 47
IV.FDMO.HHZ. 2020-07-04T00:22:37.51 0.6 undecidable manual S 50 0.3426 50 0.15 47
IV.LNSS.HHZ. 2020-07-04T00:22:36.55 0.6 undecidable manual S 133 0.3121 50 0.1 48
IV.ARRO.EHZ. 2020-07-04T00:22:34.71 0.6 undecidable manual S 173 0.2374 110 0.62 45
IV.ASSB.HHZ. 2020-07-04T00:22:34.04 0.6 undecidable manual S 347 0.2329 110 0.14 49
IV.CSP1.EHZ. 2020-07-04T00:22:33.65 0.6 negative manual P 51 0.4443 50 0.04 48
IV.CESI.HHZ. 2020-07-04T00:22:33.70 0.6 undecidable manual S 34 0.2293 110 -0.07 49
IV.CESX.HHZ. 2020-07-04T00:22:33.70 0.3 undecidable manual S 207 0.232 110 -0.17 73
IV.GAVE.EHZ. 2020-07-04T00:22:31.95 0.6 undecidable manual S 135 0.1736 116 0.16 51
IV.FDMO.HHZ. 2020-07-04T00:22:31.89 1.0 positive manual P 50 0.3426 50 0.02 24
IV.LNSS.HHZ. 2020-07-04T00:22:30.87 0.1 undecidable manual P 133 0.3121 50 -0.48 91
IV.CESX.HHZ. 2020-07-04T00:22:30.03 0.1 undecidable manual P 207 0.232 110 0.17 98
IV.ASSB.HHZ. 2020-07-04T00:22:29.59 0.6 negative manual P 347 0.2329 110 -0.28 48
IV.CESI.HHZ. 2020-07-04T00:22:29.83 0.3 undecidable manual P 34 0.2293 110 0.03 76
IV.ARRO.EHZ. 2020-07-04T00:22:29.96 0.1 undecidable manual P 173 0.2374 110 -0.02 100
IV.ATFO.HHZ. 2020-07-04T00:22:29.22 3.0 undecidable manual P -2.8 0
IV.MOMA.HHZ. 2020-07-04T00:22:29.97 0.3 undecidable manual S 264 0.1169 126 0.04 77
IV.GAVE.EHZ. 2020-07-04T00:22:28.72 1.0 undecidable manual P 135 0.1736 116 0.06 25
IV.MOMA.HHZ. 2020-07-04T00:22:27.69 1.0 undecidable manual P 264 0.1169 126 0.11 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.2 0.000197 0.1 AML other m 2020-07-04T00:22:30.74
IV.MOMA.HHN. ML:1.1 0.000137 0.58 AML other m 2020-07-04T00:22:31.09
IV.ASSB.HHN. ML:0.9 4.525E-5 1.04 AML other m 2020-07-04T00:22:34.12
IV.CESI.HHN. ML:1.1 7.46E-5 0.24 AML other m 2020-07-04T00:22:34.47
IV.CESI.HHE. ML:1 6.175E-5 0.7 AML other m 2020-07-04T00:22:35.04
IV.ASSB.HHE. ML:0.8 3.615E-5 1.48 AML other m 2020-07-04T00:22:35.88
IV.CESX.HHE. ML:0.9 5.095E-5 0.32 AML other m 2020-07-04T00:22:36.64
IV.CESX.HHN. ML:0.8 4.045E-5 0.38 AML other m 2020-07-04T00:22:36.72
IV.MTRZ.HNE. ML:3.2 0.000508 0.42 AML other m 2020-07-04T00:23:13.11
IV.MTRZ.HNN. ML:3.1 0.000388 0.56 AML other m 2020-07-04T00:23:13.24
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