Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 19-09-2021 and time 10:42:53 (UTC) in region 5 km NW Valfabbrica (PG)

A magnitude ML 0.7 earthquake occured in region: 5 km NW Valfabbrica (PG), on

  • 19-09-2021 10:42:53 (UTC)
  • 19-09-2021 12:42:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1850, 12.5520 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.

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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 5 3389 3389
Bastia Umbra PG 13 21874 25263
Assisi PG 14 28299 53562
Perugia PG 16 166134 219696
Gubbio PG 19 32216 251912
Gualdo Tadino PG 20 15208 267120
Bettona PG 20 4367 271487
Torgiano PG 20 6725 278212

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Perugia (166134 inhabitants)
28 Km NW of Foligno (57155 inhabitants)
63 Km SE of Arezzo (99543 inhabitants)
70 Km N of Terni (111501 inhabitants)
83 Km SW of Fano (60888 inhabitants)
86 Km SW of Pesaro (94582 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
93 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 0.7 2021-09-19
10:42:53		 43.1848 12.5522 10 2021-09-19
10:56:16		 Sala Sismica INGV-Roma 95630161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 10:42:53 ± 0.07
Latitude 43.1848 ± 0.0045
Longitude 12.5522 ± 0.0074
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 95630161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30217
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95630161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 10:56:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGR.HHZ. 2021-09-19T10:44:56.92 3.0 undecidable manual Sg 15.34 0
IV.CMPR.HHZ. 2021-09-19T10:44:51.34 3.0 undecidable manual Sg 15.93 0
GU.CIRO.HHZ. 2021-09-19T10:44:41.56 3.0 undecidable manual Sg 19.52 0
CR.STON.BHZ. 2021-09-19T10:44:32.78 3.0 undecidable manual Sn 2.82 0
IV.MMGO.HHZ. 2021-09-19T10:44:28.97 3.0 undecidable manual Pg 16.01 0
OT.OT12.EHZ. 2021-09-19T10:44:26.29 3.0 undecidable manual Sg 9.27 0
IV.IFOR.HHZ. 2021-09-19T10:44:22.58 3.0 undecidable manual Sg 7.11 0
IV.IOCA.HHZ. 2021-09-19T10:44:14.46 3.0 undecidable manual Sn -0.49 0
TV.SU26.HHZ. 2021-09-19T10:44:14.05 3.0 undecidable manual Pg 10.55 0
IV.PTRJ.HNZ. 2021-09-19T10:44:14.93 3.0 undecidable manual Sg 8.81 0
IV.MTGR.HHZ. 2021-09-19T10:44:09.73 3.0 undecidable manual Pn 0.08 0
IV.CAR1.HHZ. 2021-09-19T10:44:02.12 3.0 negative manual Pn -0.04 0
IV.PZUN.HHZ. 2021-09-19T10:43:56.09 3.0 positive manual Pg 12.27 0
IV.TST01.HHZ. 2021-09-19T10:43:56.86 3.0 undecidable manual Sn 0.08 0
IV.EUCT.HNZ. 2021-09-19T10:43:54.74 3.0 undecidable manual Sn 1.29 0
IV.CMPR.HHZ. 2021-09-19T10:43:42.76 3.0 undecidable manual Pn -1.93 0
IV.ZEN8.EHZ. 2021-09-19T10:43:39.15 3.0 undecidable manual Sn 0.06 0
IV.MSSA.HHZ. 2021-09-19T10:43:39.86 3.0 undecidable manual Sn -0.67 0
OT.OT14.EHZ. 2021-09-19T10:43:37.98 3.0 undecidable manual Pn 6.04 0
GU.BHB.HHZ. 2021-09-19T10:43:36.51 3.0 negative manual Pn -0.37 0
SL.KOGS.BHZ. 2021-09-19T10:43:34.62 3.0 undecidable manual Pn -1.8 0
IV.VARE.HHZ. 2021-09-19T10:43:27.35 3.0 undecidable manual Pn -1.5 0
IV.CERA.HHZ. 2021-09-19T10:43:26.09 3.0 positive manual Pn 3.2 0
IT.GNV.HGZ. 2021-09-19T10:43:18.16 3.0 positive manual Pn -1.63 0
IV.CRMI.HHZ. 2021-09-19T10:43:16.13 3.0 undecidable manual S 1.52 0
IV.RIBO.EHZ.01 2021-09-19T10:43:08.64 3.0 undecidable manual P 3.55 0
IV.NDIM.HHZ. 2021-09-19T10:43:04.55 3.0 undecidable manual P 0.24 0
IV.MMUR.HNZ. 2021-09-19T10:43:03.92 3.0 undecidable manual S -2.18 0
IV.TB03.DHZ.01 2021-09-19T10:43:02.66 1.0 undecidable manual S 335 26.6511 50 -0.2 24
IV.ASSB.HHZ. 2021-09-19T10:43:00.27 0.6 undecidable manual S 151 17.9709 119 0.07 50
IV.ATLO.EHE. 2021-09-19T10:43:00.28 0.3 undecidable manual S 321 18.5703 118 -0.11 74
IV.PP3.EHZ. 2021-09-19T10:42:59.11 3.0 positive manual P -1.98 0
IV.SSFR.HHE. 2021-09-19T10:42:59.96 0.3 undecidable manual P 34 33.5442 50 0.18 71
IV.TB03.DHZ.01 2021-09-19T10:42:58.64 0.1 undecidable manual P 335 26.6511 50 -0.08 98
IV.ATCC.EHZ. 2021-09-19T10:42:57.15 0.3 undecidable manual S 90 7.0929 145 -0.16 74
IV.ATLO.EHE. 2021-09-19T10:42:57.25 0.1 undecidable manual P 321 18.5703 118 -0.04 100
IV.MURB.HHZ. 2021-09-19T10:42:57.92 0.3 undecidable manual S 346 8.9799 138 0.21 73
IV.ASSB.HHZ. 2021-09-19T10:42:57.24 0.1 undecidable manual P 151 17.9709 119 0.06 99
IV.PE3.EHZ. 2021-09-19T10:42:56.62 3.0 undecidable manual S 4.05 0
IV.ATCC.EHZ. 2021-09-19T10:42:55.39 0.1 undecidable manual P 90 7.0929 145 -0.12 100
IV.MURB.HHZ. 2021-09-19T10:42:55.85 0.1 undecidable manual P 346 8.9799 138 0.1 100
IV.ARVD.HHZ. 2021-09-19T10:42:54.98 3.0 undecidable manual P 1.74 0
IV.PE3.EHZ. 2021-09-19T10:42:46.74 3.0 negative manual P -0.18 0
IV.CPGN.EHZ. 2021-09-19T10:42:43.75 3.0 undecidable manual P -0.81 0
IV.ATFO.HHZ. 2021-09-19T10:42:34.14 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:0.5 0.000050451620000000005 0.0768 AML other m 2021-09-19T10:42:57.35
IV.ATCC.EHN. ML:0.7 0.00007145 0.36 AML other m 2021-09-19T10:42:57.23
IV.MURB.HHN. ML:0.8 0.00008779996 0.1408 AML other m 2021-09-19T10:42:58.78
IV.MURB.HHE. ML:0.9 0.0000987 0.24 AML other m 2021-09-19T10:42:58.62
IV.ASSB.HHN. ML:0.3 0.00001745 0.48 AML other m 2021-09-19T10:43:01.54
IV.ASSB.HHE. ML:0.6 0.00003105 0.88 AML other m 2021-09-19T10:43:13.73
IV.ARVD.HHE. ML:0.7 0.000017147934999999998 0.0576 AML other m 2021-09-19T10:42:57.85
IV.ARVD.HHN. ML:0.2 0.000007130585999999999 0.0576 AML other m 2021-09-19T10:43:04.92
IV.MURB.HNE. ML:0.9 0.00010714842000000001 0.5568 AML other m 2021-09-19T10:43:01.60
IV.MURB.HNN. ML:0.8 0.000081093535 0.2432 AML other m 2021-09-19T10:42:58.19
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