Earthquake with magnitude of ML 0.1 on date 15-08-2021 and time 00:57:43 (UTC) in region 9 km NW Valfabbrica (PG)

A magnitude ML 0.1 earthquake occured in region: 9 km NW Valfabbrica (PG), on

  • 15-08-2021 00:57:43 (UTC)
  • 15-08-2021 02:57:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.218, 12.525 at 11 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 9 3389 3389
Gubbio PG 16 32216 35605
Perugia PG 17 166134 201739
Bastia Umbra PG 17 21874 223613
Assisi PG 18 28299 251912
Umbertide PG 19 16681 268593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Perugia (166134 inhabitants)
33 Km NW of Foligno (57155 inhabitants)
59 Km E of Arezzo (99543 inhabitants)
74 Km N of Terni (111501 inhabitants)
80 Km SW of Fano (60888 inhabitants)
83 Km SW of Pesaro (94582 inhabitants)
92 Km W of Ancona (100861 inhabitants)
94 Km S of Rimini (147750 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
97 Km E of Siena (53903 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 0.1 2021-08-15
00:57:43
43.2177 12.5252 11 2021-08-15
06:38:11
Sala Sismica INGV-Roma 94180751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-15 00:57:43 ± 0.06
Latitude 43.2177 ± 0.0018
Longitude 12.5252 ± 0.0049
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94180751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.268
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 94180751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-15 06:38:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2021-08-15T00:59:19.88 3.0 negative manual Pg 14.67 0
OX.PLRO.HHZ. 2021-08-15T00:59:04.80 3.0 undecidable manual Sn -5.76 0
GU.LSD.HHZ. 2021-08-15T00:58:40.64 3.0 undecidable manual Pg 5.69 0
IV.VULT.HHZ. 2021-08-15T00:58:37.91 3.0 undecidable manual Pg 3.76 0
IV.VCEL.EHZ. 2021-08-15T00:58:30.67 3.0 undecidable manual Sg -3.08 0
IV.VITU.HHZ. 2021-08-15T00:58:27.44 3.0 positive manual Pg 2.97 0
IV.PP3.EHZ. 2021-08-15T00:58:26.61 3.0 undecidable manual Sg 3.52 0
GU.GRAM.HHZ. 2021-08-15T00:58:21.90 3.0 undecidable manual Sn -5.46 0
IV.SENA.HHZ. 2021-08-15T00:58:19.05 3.0 undecidable manual Pn -8.48 0
IV.TREG.EHZ. 2021-08-15T00:58:12.63 3.0 positive manual Pn 0.35 0
IV.ARVD.HHZ. 2021-08-15T00:58:07.94 3.0 undecidable manual Sn -2.15 0
IV.MNTT.EHZ. 2021-08-15T00:57:59.07 3.0 undecidable manual Pg -2.95 0
IV.ATPC.HNE. 2021-08-15T00:57:54.55 0.6 undecidable manual S 349 0.268 90 0.56 42
IV.ATSC.EHZ. 2021-08-15T00:57:53.33 0.6 undecidable manual S 30 0.2374 90 0.24 47
IV.TB03.DH1.01 2021-08-15T00:57:52.08 0.6 undecidable manual S 336 0.2014 90 0.04 49
IV.ASSB.HHE. 2021-08-15T00:57:52.09 0.6 undecidable manual S 151 0.2005 90 0.1 49
IV.TB01.DHE.01 2021-08-15T00:57:51.28 0.6 undecidable manual S 338 0.1763 90 0 50
IV.ATVO.HHZ. 2021-08-15T00:57:51.53 0.6 undecidable manual S 332 0.1853 90 -0.03 50
IV.ATFO.HHZ. 2021-08-15T00:57:50.53 0.6 undecidable manual S 13 0.1529 90 -0.05 50
IV.ATLO.HNZ. 2021-08-15T00:57:50.06 0.6 undecidable manual S 319 0.1295 91 0.15 49
IV.ATPC.HNE. 2021-08-15T00:57:49.50 0.1 undecidable manual P 349 0.268 90 -0.1 96
IV.ATVO.HHZ. 2021-08-15T00:57:48.50 1.0 positive manual P 332 0.1853 90 0.3 23
IV.ATCC.EHZ. 2021-08-15T00:57:48.80 0.6 undecidable manual S 111 0.0899 120 0.03 50
IV.ATSC.EHZ. 2021-08-15T00:57:48.79 0.1 undecidable manual P 30 0.2374 90 -0.29 93
IV.TB03.DH1.01 2021-08-15T00:57:48.35 0.1 undecidable manual P 336 0.2014 90 -0.12 97
IV.ASSB.HHE. 2021-08-15T00:57:48.54 0.1 undecidable manual P 151 0.2005 90 0.1 99
IV.TB01.DHE.01 2021-08-15T00:57:47.95 0.1 undecidable manual P 338 0.1763 90 -0.09 98
IV.ATFO.HHZ. 2021-08-15T00:57:47.53 1.0 negative manual P 13 0.1529 90 -0.1 25
IV.MURB.HHZ. 2021-08-15T00:57:47.83 0.6 undecidable manual S 359 0.045 147 0 51
IV.ATLO.HNZ. 2021-08-15T00:57:47.23 0.1 undecidable manual P 319 0.1295 91 -0.01 100
IV.MURB.HHZ. 2021-08-15T00:57:46.12 0.3 negative manual P 359 0.045 147 0.08 76
IV.ATCC.EHZ. 2021-08-15T00:57:46.86 0.6 negative manual P 111 0.0899 120 0.27 49
IV.CRTC.HHZ. 2021-08-15T00:57:45.92 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:0.6 6.26E-5 1.16 AML other m 2021-08-15T00:57:47.96
IV.MURB.HHN. ML:0.5 4.64E-5 1.58 AML other m 2021-08-15T00:57:48.02
IV.VITU.HHE. ML:2 1.58E-5 0.86 AML other m 2021-08-15T00:58:30.35
IV.VITU.HHN. ML:2 1.59E-5 0.44 AML other m 2021-08-15T00:58:31.12
IV.ATCC.EHE. ML:0.2 2.1323708E-5 0.12 AML other m 2021-08-15T00:57:49.03
IV.ATCC.EHN. ML:0.1 1.712935E-5 0.12 AML other m 2021-08-15T00:57:48.87
IV.ATFO.HHE. ML:-0.2 5.075028E-6 0.12 AML other m 2021-08-15T00:57:50.90
IV.ATFO.HHN. ML:0.1 8.0291315E-6 0.14 AML other m 2021-08-15T00:57:50.86
IV.ATVO.HHE. ML:-0.2 6.361553E-6 0.22 AML other m 2021-08-15T00:57:52.25
IV.ATVO.HHN. ML:-0.2 3.8422295E-6 1.48 AML other m 2021-08-15T00:57:51.89
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