Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 14-08-2020 and time 07:36:38 (Italy) in region 2 km NW Gualdo Tadino (PG)

A magnitude ML 0.9 earthquake occured in region: 2 km NW Gualdo Tadino (PG), on

  • 14-08-2020 05:36:38 (UTC)
  • 14-08-2020 07:36:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2520, 12.7740 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.

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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
Gualdo Tadino PG 2 15208 15208
Fossato di Vico PG 5 2840 18048
Sigillo PG 9 2404 20452
Costacciaro PG 13 1216 21668
Esanatoglia MC 14 2034 23702
Fabriano AN 14 31480 55182
Fiuminata MC 15 1402 56584
Nocera Umbra PG 16 5839 62423
Valfabbrica PG 17 3389 65812
Sefro MC 18 422 66234
Cerreto d'Esi AN 19 3817 70051
Pioraco MC 19 1134 71185
Scheggia e Pascelupo PG 19 1393 72578
Matelica MC 19 9981 82559
Gubbio PG 19 32216 114775

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
69 Km SW of Fano (60888 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
74 Km S of Pesaro (94582 inhabitants)
76 Km E of Arezzo (99543 inhabitants)
77 Km N of Terni (111501 inhabitants)
92 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 0.9 2020-08-14
05:36:38		 43.2518 12.774 11 2020-08-14
05:40:50		 Sala Sismica INGV-Roma 81958241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-14 05:36:38 ± 0.06
Latitude 43.2518 ± 0.0018
Longitude 12.7740 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81958241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
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) 0.33275
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 81958241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-14 05:40:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-08-14T05:36:50.46 0.3 undecidable manual S 133 34.8429 90 0.28 68
IV.SAP2.EHZ. 2020-08-14T05:36:48.59 3.0 positive manual P 0.29 0
IV.ASSB.HHZ. 2020-08-14T05:36:47.23 0.3 undecidable manual S 202 25.0527 90 -0.33 69
IV.MURB.HHZ. 2020-08-14T05:36:46.53 0.3 undecidable manual S 274 20.1687 90 0.26 71
IV.FDMO.HHZ. 2020-08-14T05:36:45.28 0.3 undecidable manual P 133 34.8429 90 0.07 72
IV.PIEI.HHZ. 2020-08-14T05:36:45.28 0.3 undecidable manual P 329 36.9297 90 -0.25 66
IV.ATCC.EHZ. 2020-08-14T05:36:44.44 0.3 undecidable manual S 236 13.0758 98 0.05 74
IV.SNTG.HHZ. 2020-08-14T05:36:44.43 0.3 undecidable manual S 88 13.4754 93 -0.05 73
IV.ASSB.HHZ. 2020-08-14T05:36:43.52 0.3 undecidable manual P 202 25.0527 90 -0.18 71
IV.NARO.HHZ. 2020-08-14T05:36:43.57 3.0 undecidable manual P -2.9 0
IV.SNTG.HHZ. 2020-08-14T05:36:42.06 0.3 undecidable manual P 88 13.4754 93 0.14 74
IV.FOSV.EHZ. 2020-08-14T05:36:42.54 0.3 undecidable manual S 348 4.8951 148 -0.09 73
IV.MURB.HHZ. 2020-08-14T05:36:42.99 0.1 undecidable manual P 274 20.1687 90 0.04 98
IV.ATCC.EHZ. 2020-08-14T05:36:41.95 0.1 undecidable manual P 236 13.0758 98 0.08 99
IV.FOSV.EHZ. 2020-08-14T05:36:40.90 0.1 undecidable manual P 348 4.8951 148 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.6 0.0000547 0.18 AML other m 2020-08-14T05:36:42.73
IV.FOSV.EHN. ML:0.6 0.00006505 0.22 AML other m 2020-08-14T05:36:42.68
IV.ATCC.EHN. ML:1.1 0.0001185 0.24 AML other m 2020-08-14T05:36:44.69
IV.ATCC.EHE. ML:1.0 0.00009025 0.22 AML other m 2020-08-14T05:36:44.57
IV.SNTG.HHE. ML:0.6 0.000033299999999999996 1.42 AML other m 2020-08-14T05:36:45.77
IV.SNTG.HHN. ML:0.6 0.000034500000000000005 0.26 AML other m 2020-08-14T05:36:45.16
IV.MURB.HHE. ML:1.6 0.00029900000000000006 0.2 AML other m 2020-08-14T05:36:46.90
IV.ASSB.HHE. ML:1.0 0.00006475 0.72 AML other m 2020-08-14T05:36:47.50
IV.ASSB.HHN. ML:1.1 0.00006934999999999999 0.44 AML other m 2020-08-14T05:36:47.50
IV.MURB.HHN. ML:1.3 0.000155 0.22 AML other m 2020-08-14T05:36:47.66
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