Earthquake with magnitude of ML 1.0 on date 10-08-2020 and time 17:31:13 (UTC) in region 5 km E Valtopina (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km E Valtopina (PG), on

  • 10-08-2020 17:31:13 (UTC)
  • 10-08-2020 19:31:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.05, 12.82 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
Valtopina PG 5 1398 1398
Nocera Umbra PG 8 5839 7237
Serravalle di Chienti MC 11 1070 8307
Spello PG 13 8645 16952
Foligno PG 14 57155 74107
Sefro MC 15 422 74529
Monte Cavallo MC 16 145 74674
Assisi PG 17 28299 102973
Fiuminata MC 18 1402 104375
Muccia MC 19 915 105290
Pieve Torina MC 19 1458 106748
Trevi PG 20 8469 115217
Sellano PG 20 1079 116296
Pioraco MC 20 1134 117430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
56 Km N of Terni (111501 inhabitants)
84 Km NW of Teramo (54892 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
90 Km S of Fano (60888 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
96 Km S of Pesaro (94582 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 2020-08-10
17:31:13
43.05 12.82 10 2020-08-10
17:42:02
Sala Sismica INGV-Roma 81853741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-10 17:31:13 ± 0.13
Latitude 43.05 ± 0.01
Longitude 12.82 ± 0.00
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81853741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 556
Semi-minor axis of confidence ellipse (meter) 336
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
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) 144
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.34894
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:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 11
Type of magnitude ML
Reference to an origin 81853741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-10 17:42:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-08-10T17:31:26.38 0.1 undecidable manual S 36 0.3489 50 0.14 93
IV.SNTG.HHZ. 2020-08-10T17:31:22.25 0.3 undecidable manual S 23 0.2248 111 -0.15 72
IV.ATCC.EHZ. 2020-08-10T17:31:21.33 0.1 undecidable manual S 316 0.1898 114 0.18 95
IV.FDMO.HHZ. 2020-08-10T17:31:21.10 0.1 undecidable manual S 93 0.1961 114 -0.25 94
IV.EL6.EHZ. 2020-08-10T17:31:20.65 0.6 negative manual P 36 0.3489 50 -0.04 48
IV.MML1.EHZ. 2020-08-10T17:31:19.35 0.1 undecidable manual S 59 0.1295 124 0.26 95
IV.ASSB.HHZ. 2020-08-10T17:31:18.59 0.1 undecidable manual S 268 0.1178 126 -0.14 98
IV.CESI.HHZ. 2020-08-10T17:31:17.65 0.1 undecidable manual S 124 0.0755 139 0.13 99
IV.FDMO.HHZ. 2020-08-10T17:31:17.90 0.1 undecidable manual P 93 0.1961 114 0.03 99
IV.ATCC.EHZ. 2020-08-10T17:31:17.84 0.1 undecidable manual P 316 0.1898 114 0.09 97
IV.SNTG.HHZ. 2020-08-10T17:31:17.76 0.3 undecidable manual P 23 0.2248 111 -0.71 61
IV.ASSB.HHZ. 2020-08-10T17:31:16.33 0.1 positive manual P 268 0.1178 126 -0.03 100
IV.MML1.EHZ. 2020-08-10T17:31:16.64 0.1 undecidable manual P 59 0.1295 124 0.08 99
IV.CESI.HHZ. 2020-08-10T17:31:15.73 0.1 undecidable manual P 124 0.0755 139 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.00011275745 0.1152 AML other m 2020-08-10T17:31:17.82
IV.CESI.HHN. ML:0.9 0.000103034785 0.064 AML other m 2020-08-10T17:31:17.75
IV.CESI.HNN. ML:0.9 0.00011014123 0.3584 AML other m 2020-08-10T17:31:17.68
IV.ASSB.HHE. ML:0.8 7.333574E-5 0.1536 AML other m 2020-08-10T17:31:19.45
IV.ASSB.HHN. ML:0.8 6.9306075E-5 0.0768 AML other m 2020-08-10T17:31:19.06
IV.ATCC.EHE. ML:1.2 0.000115577615 0.1024 AML other m 2020-08-10T17:31:21.61
IV.ATCC.EHN. ML:1.1 8.593962E-5 0.1024 AML other m 2020-08-10T17:31:21.80
IV.FDMO.HHE. ML:1 7.6989865E-5 0.128 AML other m 2020-08-10T17:31:21.34
IV.FDMO.HHN. ML:1.1 8.5171785E-5 0.1792 AML other m 2020-08-10T17:31:21.37
IV.EL6.EHE. ML:1.1 5.01387E-5 0.2432 AML other m 2020-08-10T17:31:26.77
IV.EL6.EHN. ML:0.9 3.14368E-5 0.1024 AML other m 2020-08-10T17:31:27.00
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