Earthquake with magnitude of ML 1.0 on date 22-05-2021 and time 06:35:53 (UTC) in region 2 km NW Gubbio (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km NW Gubbio (PG), on

  • 22-05-2021 06:35:53 (UTC)
  • 22-05-2021 08:35:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3700, 12.5630 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Gubbio PG 2 32216 32216
Scheggia e Pascelupo PG 9 1393 33609
Costacciaro PG 12 1216 34825
Cantiano PU 13 2245 37070
Pietralunga PG 13 2111 39181
Sigillo PG 15 2404 41585
Fossato di Vico PG 18 2840 44425
Montone PG 19 1680 46105

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
47 Km N of Foligno (57155 inhabitants)
56 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
77 Km S of Rimini (147750 inhabitants)
82 Km W of Ancona (100861 inhabitants)
89 Km SE of Cesena (96758 inhabitants)
90 Km N of Terni (111501 inhabitants)
100 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
Bulletin
Rev1000
ML 1.0 2021-05-22
06:35:53
43.3703 12.5627 8 2021-12-29
11:12:01
Bollettino Sismico Italiano INGV 90508661
Reviewed
Rev100
ML 1.3 2021-05-22
06:35:53
43.3702 12.5503 9 2021-05-22
07:03:38
Sala Sismica INGV-Roma 90363361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-22 06:35:53 ± 0.13
Latitude 43.3703 ± 0.0054
Longitude 12.5627 ± 0.0087
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90508661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 643
Semi-minor axis of confidence ellipse (meter) 408
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00719
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 90508661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-26 11:23:11

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 90363361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-22 07:03:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-05-22T06:36:06.39 0.3 undecidable manual S 168 37.1295 50 -0.32 68
IV.ARVD.HHZ. 2021-05-22T06:36:05.81 0.3 undecidable manual S 65 33.6441 103 0.17 71
IV.ATCC.EHZ. 2021-05-22T06:36:02.15 0.3 undecidable manual S 163 21.4674 110 0.56 66
IV.ARVD.HHZ. 2021-05-22T06:36:00.57 0.3 undecidable manual P 65 33.6441 103 0 73
IV.PIEI.HHZ. 2021-05-22T06:36:00.96 0.3 undecidable manual S 353 18.4704 113 0.34 70
IV.ASSB.HHZ. 2021-05-22T06:36:00.84 0.1 undecidable manual P 168 37.1295 50 -0.35 90
IV.MURB.HHZ. 2021-05-22T06:35:59.07 0.1 undecidable manual S 194 12.2766 123 0.34 94
IV.ATPI.EHZ. 2021-05-22T06:35:59.91 0.3 undecidable manual S 305 15.6732 117 0.16 73
IV.ATVO.HHZ. 2021-05-22T06:35:58.67 0.3 undecidable manual S 276 12.6762 122 -0.16 74
IV.ATCC.EHZ. 2021-05-22T06:35:58.42 0.3 undecidable manual P 163 21.4674 110 0.19 72
IV.PIEI.HHZ. 2021-05-22T06:35:57.81 0.1 undecidable manual P 353 18.4704 113 0.14 97
IV.ATPI.EHZ. 2021-05-22T06:35:57.22 0.3 undecidable manual P 305 15.6732 117 0.05 75
IV.ATVO.HHZ. 2021-05-22T06:35:56.57 0.1 undecidable manual P 276 12.6762 122 -0.06 100
IV.MURB.HHZ. 2021-05-22T06:35:56.75 0.1 undecidable manual P 194 12.2766 123 0.17 98
IV.ATFO.HHZ. 2021-05-22T06:35:55.39 0.3 undecidable manual S 121 0.7992 174 -1.03 56
IV.ATFO.HHZ. 2021-05-22T06:35:54.87 0.1 negative manual P 121 0.7992 174 -0.38 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:1.0 0.000104536085 0.1184 AML other m 2021-05-22T06:35:59.03
IV.ATVO.HHE. ML:0.8 0.0000845804 0.1408 AML other m 2021-05-22T06:35:59.18
IV.MURB.HNN. ML:1.6 0.000584 0.24 AML other m 2021-05-22T06:35:59.52
IV.MURB.HHN. ML:1.7 0.000605 0.24 AML other m 2021-05-22T06:35:59.53
IV.MURB.HHE. ML:1.6 0.0005269999999999999 0.28 AML other m 2021-05-22T06:36:00.15
IV.MURB.HNE. ML:1.6 0.0005155000000000001 0.3 AML other m 2021-05-22T06:36:00.14
IV.PIEI.HHN. ML:1.0 0.0000898 0.18 AML other m 2021-05-22T06:36:01.54
IV.PIEI.HHE. ML:1.2 0.000149 0.28 AML other m 2021-05-22T06:36:01.65
IV.ATCC.EHN. ML:1.0 0.000062772625 0.1408 AML other m 2021-05-22T06:36:02.78
IV.ATCC.EHE. ML:1.0 0.00007085 0.1 AML other m 2021-05-22T06:36:02.59
IV.ATFO.HHN. ML:0.0 0.0028213964999999996 0.16 AML other m 2021-05-22T06:35:55.56
IV.ATFO.HHE. ML:0.0 0.0022057 0.2208 AML other m 2021-05-22T06:35:56.06
IV.ATPI.EHN. ML:0.7 0.000047756989999999996 0.16 AML other m 2021-05-22T06:36:00.81
IV.ATPI.EHE. ML:0.4 0.00002732676 0.1984 AML other m 2021-05-22T06:36:02.05
IV.ARVD.HHN. ML:0.4 0.0000119035765 0.08 AML other m 2021-05-22T06:36:06.71
IV.ARVD.HHE. ML:0.5 0.000017279514999999997 0.1024 AML other m 2021-05-22T06:36:07.61
IV.ASSB.HHE. ML:0.8 0.00002719429 0.1216 AML other m 2021-05-22T06:36:07.75
IV.ASSB.HHN. ML:0.8 0.000024343765 0.0992 AML other m 2021-05-22T06:36:06.71
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