Earthquake with magnitude of ML 0.8 on date 29-07-2020 and time 05:16:02 (Italy) in region 4 km NW Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km NW Sellano (PG), on

  • 29-07-2020 03:16:02 (UTC)
  • 29-07-2020 05:16:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.91, 12.89 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
Sellano PG 4 1079 1079
Cerreto di Spoleto PG 10 1075 2154
Trevi PG 12 8469 10623
Preci PG 13 724 11347
Monte Cavallo MC 13 145 11492
Campello sul Clitunno PG 13 2442 13934
Vallo di Nera PG 16 364 14298
Foligno PG 16 57155 71453
Visso MC 17 1107 72560
Serravalle di Chienti MC 19 1070 73630
Montefalco PG 19 5679 79309
Sant'Anatolia di Narco PG 20 564 79873
Castel Ritaldi PG 20 3278 83151

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
46 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 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 0.8 2020-07-29
03:16:02
42.91 12.89 10 2020-07-29
03:25:46
Sala Sismica INGV-Roma 81439971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-29 03:16:02 ± 0.06
Latitude 42.91 ± 0.00
Longitude 12.89 ± 0.00
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 81439971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 268
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.09713
Epicentral distance of station farthest from the epicenter (degree) 0.33095
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 81439971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-29 03:25:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-07-29T03:16:14.36 0.3 undecidable manual S 51 0.2941 50 0.05 73
IV.ASSB.HHZ. 2020-07-29T03:16:11.78 0.3 undecidable manual S 309 0.2158 113 -0.15 73
IV.GAVE.EHZ. 2020-07-29T03:16:11.97 0.6 undecidable manual S 179 0.2158 113 0.02 50
IV.ATCC.EHZ. 2020-07-29T03:16:10.16 0.3 undecidable manual P 327 0.331 50 0.04 73
IV.NRCA.HHZ. 2020-07-29T03:16:10.59 0.6 undecidable manual S 114 0.1808 117 -0.12 49
IV.FDMO.HHZ. 2020-07-29T03:16:10.89 0.3 undecidable manual S 48 0.1934 115 -0.25 71
IV.CSP1.EHZ. 2020-07-29T03:16:09.51 0.3 undecidable manual P 51 0.2941 50 0.01 74
IV.CESI.HHZ. 2020-07-29T03:16:08.35 0.3 undecidable manual S 7 0.0971 133 0.31 72
IV.GAVE.EHZ. 2020-07-29T03:16:08.19 0.3 positive manual P 179 0.2158 113 0.06 74
IV.FDMO.HHZ. 2020-07-29T03:16:07.65 0.6 undecidable manual P 48 0.1934 115 -0.01 50
IV.ASSB.HHZ. 2020-07-29T03:16:07.98 0.3 undecidable manual P 309 0.2158 113 -0.14 73
IV.NRCA.HHZ. 2020-07-29T03:16:07.44 0.1 negative manual P 114 0.1808 117 0.03 100
IV.CESI.HHZ. 2020-07-29T03:16:06.20 1.0 undecidable manual P 7 0.0971 133 0.33 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.6 4.626341E-5 0.0816 AML other m 2020-07-29T03:16:08.67
IV.CESI.HHN. ML:1 0.00010944435 0.0992 AML other m 2020-07-29T03:16:08.48
IV.CESI.HNE. ML:0.8 7.47727905E-5 0.4208 AML other m 2020-07-29T03:16:10.94
IV.CESI.HNN. ML:1.1 0.000140882185 0.24 AML other m 2020-07-29T03:16:12.08
IV.NRCA.HHE. ML:0.8 4.8492125E-5 0.16 AML other m 2020-07-29T03:16:11.16
IV.NRCA.HHN. ML:0.8 5.1724195E-5 0.12 AML other m 2020-07-29T03:16:11.22
IV.NRCA.HNE. ML:1.3 0.00014630045 1.48 AML other m 2020-07-29T03:16:15.22
IV.NRCA.HNN. ML:1.3 0.00015615061 0.8704 AML other m 2020-07-29T03:16:15.81
IV.FDMO.HHE. ML:0.6 2.847734E-5 0.1008 AML other m 2020-07-29T03:16:11.33
IV.FDMO.HHN. ML:0.5 2.210767E-5 0.1216 AML other m 2020-07-29T03:16:11.24
IV.ASSB.HHE. ML:0.5 2.0231575E-5 0.1008 AML other m 2020-07-29T03:16:11.96
IV.ASSB.HHN. ML:0.4 1.6578195E-5 0.08 AML other m 2020-07-29T03:16:13.32
IV.GAVE.EHE. ML:1.1 7.2403635E-5 0.1408 AML other m 2020-07-29T03:16:12.03
IV.GAVE.EHN. ML:1 5.404936E-5 0.1392 AML other m 2020-07-29T03:16:12.44
IV.GAVE.HNE. ML:1.2 0.000111935 0.68 AML other m 2020-07-29T03:16:11.28
IV.CSP1.EHE. ML:0.4 1.039569E-5 0.2192 AML other m 2020-07-29T03:16:14.58
IV.CSP1.EHN. ML:0.5 1.29990916E-5 0.2192 AML other m 2020-07-29T03:16:16.41
IV.ATCC.EHE. ML:0.7 1.8202715E-5 0.3792 AML other m 2020-07-29T03:16:20.11
IV.ATCC.EHN. ML:0.6 1.49496295E-5 0.24 AML other m 2020-07-29T03:16:18.75
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