Earthquake with magnitude of ML 1.2 on date 19-08-2021 and time 05:46:34 (Italy) in region 3 km NW Valfabbrica (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km NW Valfabbrica (PG), on

  • 19-08-2021 03:46:34 (UTC)
  • 19-08-2021 05:46:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1840, 12.5870 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 3 3389 3389
Assisi PG 13 28299 31688
Bastia Umbra PG 13 21874 53562
Gualdo Tadino PG 17 15208 68770
Perugia PG 18 166134 234904
Nocera Umbra PG 18 5839 240743
Fossato di Vico PG 19 2840 243583
Gubbio PG 19 32216 275799
Valtopina PG 19 1398 277197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Perugia (166134 inhabitants)
27 Km NW of Foligno (57155 inhabitants)
65 Km E of Arezzo (99543 inhabitants)
69 Km N of Terni (111501 inhabitants)
81 Km SW of Fano (60888 inhabitants)
85 Km SW of Pesaro (94582 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
98 Km S of Rimini (147750 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2021-08-19
03:46:34
43.1843 12.5873 11 2021-08-19
03:54:48
Sala Sismica INGV-Roma 94354931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 03:46:34 ± 0.06
Latitude 43.1843 ± 0.0027
Longitude 12.5873 ± 0.0062
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94354931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
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 22
Number of defining phases 19
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40110
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 94354931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 03:54:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-08-19T03:46:49.25 0.1 undecidable manual S 69 44.5221 50 0.46 87
IV.MOMA.HHZ. 2021-08-19T03:46:48.24 0.1 undecidable manual S 182 42.2244 50 0.07 94
IV.SSFR.HHZ. 2021-08-19T03:46:45.24 0.3 undecidable manual S 29 32.0457 50 -0.22 70
IV.MML1.EHZ. 2021-08-19T03:46:45.40 0.3 undecidable manual S 104 32.0457 50 -0.06 72
IV.CAFI.HHZ. 2021-08-19T03:46:44.44 3.0 undecidable manual P 0.02 0
IV.CSP1.EHZ. 2021-08-19T03:46:44.19 3.0 negative manual P 0.34 0
IV.ATVO.HHZ. 2021-08-19T03:46:43.57 0.3 undecidable manual S 326 26.3514 50 -0.36 68
IV.MGAB.HHZ. 2021-08-19T03:46:43.87 3.0 undecidable manual P 0.13 0
IV.EL6.EHZ. 2021-08-19T03:46:42.70 1.0 negative manual P 69 44.5221 50 0.03 24
IV.MOMA.HHZ. 2021-08-19T03:46:42.63 0.3 undecidable manual P 182 42.2244 50 0.32 67
IV.FDMO.HHZ. 2021-08-19T03:46:42.55 0.3 undecidable manual P 112 43.7229 50 0.01 71
IV.FOSV.EHZ. 2021-08-19T03:46:41.55 0.1 undecidable manual S 49 18.6702 119 -0.18 96
IV.ASSB.HHZ. 2021-08-19T03:46:40.77 0.1 undecidable manual S 160 16.7721 122 -0.39 92
IV.SSFR.HHZ. 2021-08-19T03:46:40.62 0.1 undecidable manual P 29 32.0457 50 -0.13 95
IV.MML1.EHZ. 2021-08-19T03:46:40.68 0.3 undecidable manual P 104 32.0457 50 -0.07 72
IV.MURB.HHZ. 2021-08-19T03:46:39.53 0.3 undecidable manual S 330 10.0788 136 0.18 73
IV.ATVO.HHZ. 2021-08-19T03:46:39.79 0.1 undecidable manual P 326 26.3514 50 -0.08 97
IV.ASSB.HHZ. 2021-08-19T03:46:38.27 0.1 undecidable manual P 160 16.7721 122 0.01 100
IV.ATCC.EHZ. 2021-08-19T03:46:38.24 0.3 undecidable manual S 89 4.2957 158 0.01 76
IV.FOSV.EHZ. 2021-08-19T03:46:38.63 0.1 undecidable manual P 49 18.6702 119 0.04 99
IV.MURB.HHZ. 2021-08-19T03:46:37.47 0.1 undecidable manual P 330 10.0788 136 0.25 96
IV.ATCC.EHZ. 2021-08-19T03:46:36.68 0.1 undecidable manual P 89 4.2957 158 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:1.5 0.000502 0.28 AML other m 2021-08-19T03:46:38.48
IV.ATCC.EHN. ML:1.4 0.0004395 0.6 AML other m 2021-08-19T03:46:38.10
IV.MURB.HHN. ML:1.4 0.00034750000000000004 0.32 AML other m 2021-08-19T03:46:39.93
IV.MURB.HHE. ML:1.6 0.0005475 0.22 AML other m 2021-08-19T03:46:40.47
IV.ASSB.HHN. ML:1.2 0.0001215 0.2 AML other m 2021-08-19T03:46:41.10
IV.FOSV.EHE. ML:1.2 0.0001275 1.6 AML other m 2021-08-19T03:46:41.81
IV.FOSV.EHN. ML:1.0 0.0000764 1.82 AML other m 2021-08-19T03:46:42.91
IV.ASSB.HHE. ML:1.0 0.0000894 0.84 AML other m 2021-08-19T03:46:42.73
IV.MML1.EHE. ML:0.9 0.00003655 1.38 AML other m 2021-08-19T03:46:45.86
IV.MML1.EHN. ML:1.0 0.0000485 0.28 AML other m 2021-08-19T03:46:46.27
IV.SSFR.HHE. ML:1.5 0.0001385 0.18 AML other m 2021-08-19T03:46:46.64
IV.SSFR.HHN. ML:1.5 0.00015000000000000001 0.2 AML other m 2021-08-19T03:46:46.89
IV.FDMO.HHE. ML:1.0 0.00002815 0.16 AML other m 2021-08-19T03:46:49.36
IV.MOMA.HHE. ML:0.8 0.000021499999999999997 0.9 AML other m 2021-08-19T03:46:49.83
IV.FDMO.HHN. ML:1.0 0.0000304 1.42 AML other m 2021-08-19T03:46:49.27
IV.MGAB.HHE. ML:1.1 0.0000344 0.84 AML other m 2021-08-19T03:46:53.40
IV.MGAB.HHN. ML:1.4 0.00006395000000000001 0.88 AML other m 2021-08-19T03:46:53.91
IV.MOMA.HHN. ML:0.9 0.00002465 1.58 AML other m 2021-08-19T03:46:56.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download