Earthquake with magnitude of ML 0.8 on date 12-08-2020 and time 14:25:43 (Italy) in region 6 km N Valfabbrica (PG)

A magnitude ML 0.8 earthquake occured in region: 6 km N Valfabbrica (PG), on

  • 12-08-2020 12:25:43 (UTC)
  • 12-08-2020 14:25:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.21, 12.61 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
Valfabbrica PG 6 3389 3389
Gualdo Tadino PG 14 15208 18597
Assisi PG 15 28299 46896
Fossato di Vico PG 16 2840 49736
Gubbio PG 16 32216 81952
Bastia Umbra PG 17 21874 103826
Sigillo PG 17 2404 106230
Nocera Umbra PG 18 5839 112069
Costacciaro PG 19 1216 113285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Perugia (166134 inhabitants)
29 Km N of Foligno (57155 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
72 Km N of Terni (111501 inhabitants)
78 Km SW of Fano (60888 inhabitants)
82 Km SW of Pesaro (94582 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
95 Km S of Rimini (147750 inhabitants)
97 Km NE of Viterbo (67173 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 2020-08-12
12:25:43
43.21 12.61 10 2020-08-12
12:32:58
Sala Sismica INGV-Roma 81906991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-12 12:25:43 ± 0.09
Latitude 43.21 ± 0.01
Longitude 12.61 ± 0.01
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 81906991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 755
Semi-minor axis of confidence ellipse (meter) 433
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38761
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 81906991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-12 12:32:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2020-08-12T12:26:04.10 3.0 undecidable manual S -0.3 0
IV.FDMO.HHZ. 2020-08-12T12:25:58.30 0.6 undecidable manual S 116 0.3876 50 0.47 43
IV.EL6.EHZ. 2020-08-12T12:25:57.54 0.6 undecidable manual S 71 0.3759 50 0.05 48
IV.PIEI.HHZ. 2020-08-12T12:25:56.09 0.3 undecidable manual S 350 0.331 50 -0.06 72
IV.FRON.EHZ. 2020-08-12T12:25:55.37 3.0 undecidable manual S 0
IV.GAVE.EHZ. 2020-08-12T12:25:55.96 3.0 undecidable manual S 0.19 0
IV.ATVO.HHZ. 2020-08-12T12:25:52.75 0.6 undecidable manual S 319 0.2284 111 -0.32 46
IV.EL6.EHZ. 2020-08-12T12:25:51.42 0.1 undecidable manual P 71 0.3759 50 -0.21 92
IV.FDMO.HHZ. 2020-08-12T12:25:51.73 0.1 undecidable manual P 116 0.3876 50 -0.1 94
IV.PIEI.HHZ. 2020-08-12T12:25:51.31 0.1 undecidable manual P 350 0.331 50 0.45 88
IV.ASSB.HHZ. 2020-08-12T12:25:50.88 0.3 undecidable manual S 168 0.17 118 -0.16 73
IV.ARVD.HHZ. 2020-08-12T12:25:50.18 3.0 negative manual P -0.3 0
IV.FOSV.EHZ. 2020-08-12T12:25:49.82 0.3 undecidable manual S 52 0.1376 123 -0.14 73
IV.ATVO.HHZ. 2020-08-12T12:25:48.50 0.1 undecidable manual P 319 0.2284 111 -0.58 86
IV.MURB.HHZ. 2020-08-12T12:25:48.73 0.3 undecidable manual S 310 0.0836 137 0.4 70
IV.FRON.EHZ. 2020-08-12T12:25:48.78 3.0 undecidable manual P 0
IV.ASSB.HHZ. 2020-08-12T12:25:47.79 0.1 undecidable manual P 168 0.17 118 -0.12 98
IV.FOSV.EHZ. 2020-08-12T12:25:47.27 0.6 undecidable manual P 52 0.1376 123 -0.02 50
IV.ATCC.EHZ. 2020-08-12T12:25:47.46 0.3 undecidable manual S 140 0.0315 160 0.18 74
IV.ATFO.HHZ. 2020-08-12T12:25:47.72 0.1 undecidable manual P 349 0.1601 119 0.02 100
IV.MURB.HHZ. 2020-08-12T12:25:46.58 0.1 undecidable manual P 310 0.0836 137 0.23 97
IV.ATCC.EHZ. 2020-08-12T12:25:45.96 1.0 negative manual P 140 0.0315 160 0.22 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.4 0.00052257165 0.1216 AML other m 2020-08-12T12:25:47.77
IV.ATCC.EHE. ML:1.6 0.0007121986 0.2816 AML other m 2020-08-12T12:25:47.71
IV.MURB.HNE. ML:1.5 0.00042476905 0.3584 AML other m 2020-08-12T12:25:49.16
IV.MURB.HHN. ML:1.4 0.000362926 0.2432 AML other m 2020-08-12T12:25:50.13
IV.MURB.HHE. ML:1.5 0.0004378626 0.1984 AML other m 2020-08-12T12:25:49.16
IV.MURB.HNN. ML:1.4 0.00034827755 0.1792 AML other m 2020-08-12T12:25:49.01
IV.FOSV.EHN. ML:0.8 5.9248845E-5 0.096 AML other m 2020-08-12T12:25:50.00
IV.FOSV.EHE. ML:1.1 0.00011343143 0.1408 AML other m 2020-08-12T12:25:50.01
IV.ATFO.HHN. ML:0.6 3.6011585E-5 0.2368 AML other m 2020-08-12T12:25:50.79
IV.ATFO.HHE. ML:0.9 6.210058E-5 0.3456 AML other m 2020-08-12T12:25:51.10
IV.ASSB.HHN. ML:1.1 9.146867E-5 0.064 AML other m 2020-08-12T12:25:51.24
IV.ASSB.HHE. ML:0.9 6.552224E-5 0.0832 AML other m 2020-08-12T12:25:51.16
IV.ATVO.HHE. ML:0.4 1.4759395E-5 0.256 AML other m 2020-08-12T12:25:55.31
IV.ATVO.HHN. ML:0.4 1.347685E-5 0.1408 AML other m 2020-08-12T12:25:54.17
IV.ARVD.HHN. ML:0.8 1.830703E-5 0.1408 AML other m 2020-08-12T12:25:57.50
IV.ARVD.HHE. ML:0.9 2.518232E-5 0.0384 AML other m 2020-08-12T12:26:11.74
IV.PIEI.HHN. ML:0.7 2.208652E-5 0.2816 AML other m 2020-08-12T12:25:56.97
IV.PIEI.HHE. ML:1 3.3687785E-5 0.224 AML other m 2020-08-12T12:25:56.97
IV.FDMO.HHE. ML:0.5 1.162853E-5 0.1408 AML other m 2020-08-12T12:25:58.80
IV.FDMO.HHN. ML:0.5 1.15558115E-5 0.1856 AML other m 2020-08-12T12:25:58.85
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