Earthquake with magnitude of ML 1.3 on date 25-09-2021 and time 20:32:38 (UTC) in region 8 km N Valfabbrica (PG)

A magnitude ML 1.3 earthquake occured in region: 8 km N Valfabbrica (PG), on

  • 25-09-2021 20:32:38 (UTC)
  • 25-09-2021 22:32:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2310, 12.6260 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 8 3389 3389
Gualdo Tadino PG 13 15208 18597
Fossato di Vico PG 13 2840 21437
Gubbio PG 14 32216 53653
Sigillo PG 15 2404 56057
Costacciaro PG 16 1216 57273
Assisi PG 18 28299 85572
Nocera Umbra PG 19 5839 91411
Bastia Umbra PG 19 21874 113285
Scheggia e Pascelupo PG 20 1393 114678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Perugia (166134 inhabitants)
31 Km N of Foligno (57155 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
74 Km N of Terni (111501 inhabitants)
75 Km SW of Fano (60888 inhabitants)
79 Km SW of Pesaro (94582 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
93 Km S of Rimini (147750 inhabitants)
100 Km NE of Viterbo (67173 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 1.3 2021-09-25
20:32:38
43.2307 12.6263 10 2021-09-25
20:46:14
Sala Sismica INGV-Roma 95878331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-25 20:32:38 ± 0.05
Latitude 43.2307 ± 0.0027
Longitude 12.6263 ± 0.0037
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 95878331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 95878331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-25 20:46:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-09-25T20:32:59.79 3.0 undecidable manual S 0.02 0
IV.GAVE.EHZ. 2021-09-25T20:32:50.83 3.0 negative manual P 0.37 0
IV.ATPC.HHZ. 2021-09-25T20:32:50.05 0.3 undecidable manual S 334 30.9468 50 0.42 67
IV.ATBU.HNZ. 2021-09-25T20:32:49.19 0.3 undecidable manual S 347 27.9498 50 0.37 68
IV.FRON.EHZ. 2021-09-25T20:32:49.96 0.3 undecidable manual S 14 32.8449 50 -0.18 70
IV.ATPI.EHZ. 2021-09-25T20:32:49.45 0.3 undecidable manual S 324 30.3474 50 -0.03 73
IV.SSFR.HHZ. 2021-09-25T20:32:48.16 0.3 undecidable manual S 29 26.0517 50 -0.17 71
IV.CSP1.EHZ. 2021-09-25T20:32:48.18 3.0 undecidable manual P -0.02 0
IV.ATVA.EHZ. 2021-09-25T20:32:48.51 0.3 undecidable manual S 281 28.0497 50 -0.35 68
IV.SNTG.HHZ. 2021-09-25T20:32:48.30 0.3 undecidable manual S 84 25.5522 50 0.11 72
IV.CING.HHZ. 2021-09-25T20:32:48.04 3.0 negative manual P 0.02 0
IV.MPAG.EHZ. 2021-09-25T20:32:47.32 3.0 undecidable manual P 0.11 0
IV.FDMO.HHZ. 2021-09-25T20:32:47.00 3.0 positive manual P -0.15 0
IV.PE3.EHZ. 2021-09-25T20:32:46.95 3.0 undecidable manual P -1.33 0
IV.ASSB.HHZ. 2021-09-25T20:32:46.86 0.3 undecidable manual S 173 21.0678 115 0.11 73
IV.NARO.HHZ. 2021-09-25T20:32:46.67 3.0 negative manual P 0.08 0
IV.EL6.EHZ. 2021-09-25T20:32:46.50 3.0 positive manual P -0.07 0
IV.FRON.EHZ. 2021-09-25T20:32:45.05 0.6 negative manual P 14 32.8449 50 -0.24 46
IV.ATPC.HHZ. 2021-09-25T20:32:45.33 0.6 undecidable manual P 334 30.9468 50 0.33 46
IV.ATFO.HHZ. 2021-09-25T20:32:45.06 0.3 undecidable manual S 344 15.7731 122 -0.08 74
IV.SNTG.HHZ. 2021-09-25T20:32:44.13 0.3 positive manual P 84 25.5522 50 -0.03 74
IV.ATPI.EHZ. 2021-09-25T20:32:44.86 0.3 undecidable manual P 324 30.3474 50 -0.05 72
IV.ATBU.HNZ. 2021-09-25T20:32:44.51 0.3 undecidable manual P 347 27.9498 50 -0.02 73
IV.SSFR.HHZ. 2021-09-25T20:32:44.03 0.1 negative manual P 29 26.0517 50 -0.21 94
IV.ATVA.EHZ. 2021-09-25T20:32:44.66 0.3 undecidable manual P 281 28.0497 50 0.1 72
IV.ASSB.HHZ. 2021-09-25T20:32:43.33 0.1 positive manual P 173 21.0678 115 -0.01 99
IV.MURB.HHZ. 2021-09-25T20:32:43.22 0.3 undecidable manual S 294 8.9799 138 -0.12 74
IV.ATFO.HHZ. 2021-09-25T20:32:42.49 0.3 negative manual P 344 15.7731 122 0.09 74
IV.ATCC.EHZ. 2021-09-25T20:32:42.49 0.3 undecidable manual S 168 5.1948 153 -0.08 75
IV.MURB.HHZ. 2021-09-25T20:32:41.37 0.3 undecidable manual P 294 8.9799 138 0 76
IV.ATCC.EHZ. 2021-09-25T20:32:41.01 0.1 undecidable manual P 168 5.1948 153 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.8 0.0009654711499999999 0.0768 AML other m 2021-09-25T20:32:42.76
IV.ATCC.EHE. ML:1.6 0.0006581960499999999 0.0768 AML other m 2021-09-25T20:32:42.60
IV.ATFO.HHN. ML:1.0 0.00009865 1.3 AML other m 2021-09-25T20:32:45.71
IV.ATFO.HHE. ML:1.1 0.00011199999999999998 0.7 AML other m 2021-09-25T20:32:46.40
IV.ASSB.HHE. ML:1.5 0.000229 0.28 AML other m 2021-09-25T20:32:47.16
IV.ASSB.HHN. ML:1.4 0.0001895 0.36 AML other m 2021-09-25T20:32:47.40
IV.SNTG.HHN. ML:1.5 0.000176 0.4 AML other m 2021-09-25T20:32:48.40
IV.SNTG.HHE. ML:1.2 0.00009235 0.3 AML other m 2021-09-25T20:32:48.46
IV.SSFR.HHE. ML:1.8 0.00034950000000000004 1.84 AML other m 2021-09-25T20:32:48.06
IV.SSFR.HNE. ML:1.9 0.0004505 1.86 AML other m 2021-09-25T20:32:48.05
IV.SSFR.HNN. ML:1.8 0.0004 0.76 AML other m 2021-09-25T20:32:49.12
IV.SSFR.HHN. ML:1.6 0.00022899999999999998 0.16 AML other m 2021-09-25T20:32:49.33
IV.ATPI.EHN. ML:0.9 0.000037 0.28 AML other m 2021-09-25T20:32:49.62
IV.FRON.EHE. ML:1.2 0.00007025000000000001 1.36 AML other m 2021-09-25T20:32:50.68
IV.FRON.EHN. ML:1.2 0.00007455000000000001 0.38 AML other m 2021-09-25T20:32:50.08
IV.ATMI.HHN. ML:0.9 0.0000413 1.18 AML other m 2021-09-25T20:32:51.82
IV.ATMI.HHE. ML:1.0 0.00005165 0.26 AML other m 2021-09-25T20:32:51.94
IV.EL6.EHN. ML:1.5 0.0001037 0.92 AML other m 2021-09-25T20:32:52.35
IV.EL6.EHE. ML:1.3 0.0000762 0.24 AML other m 2021-09-25T20:32:52.80
IV.ATPI.EHE. ML:0.8 0.00002755 0.56 AML other m 2021-09-25T20:32:53.77
IV.NARO.HHN. ML:0.9 0.0000239 1.08 AML other m 2021-09-25T20:32:53.59
IV.NARO.HHE. ML:0.9 0.0000252 0.52 AML other m 2021-09-25T20:32:54.32
IV.CING.HHE. ML:1.1 0.000034750000000000004 0.72 AML other m 2021-09-25T20:32:55.48
IV.CING.HHN. ML:1.3 0.000050549999999999995 0.68 AML other m 2021-09-25T20:32:55.56
IV.GAVE.EHN. ML:1.1 0.00002675 1.66 AML other m 2021-09-25T20:32:59.93
IV.GAVE.EHE. ML:1.1 0.000025600000000000002 1.6 AML other m 2021-09-25T20:32:59.15
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