Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 23-06-2020 and time 11:15:17 (Italy) in region 4 km E Foligno (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km E Foligno (PG), on

  • 23-06-2020 09:15:17 (UTC)
  • 23-06-2020 11:15:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9450, 12.7490 at 27 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
Foligno PG 4 57155 57155
Trevi PG 7 8469 65624
Spello PG 8 8645 74269
Montefalco PG 10 5679 79948
Bevagna PG 11 5081 85029
Valtopina PG 13 1398 86427
Campello sul Clitunno PG 14 2442 88869
Cannara PG 15 4305 93174
Castel Ritaldi PG 15 3278 96452
Sellano PG 16 1079 97531
Gualdo Cattaneo PG 16 6155 103686
Assisi PG 18 28299 131985
Giano dell'Umbria PG 19 3846 135831
Nocera Umbra PG 19 5839 141670
Cerreto di Spoleto PG 20 1075 142745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of Foligno (57155 inhabitants)
34 Km SE of Perugia (166134 inhabitants)
43 Km N of Terni (111501 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
84 Km W of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
97 Km SW of Ancona (100861 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 2020-06-23
09:15:17		 42.945 12.7487 27 2020-06-23
09:37:51		 Sala Sismica INGV-Roma 80437111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-23 09:15:17 ± 0.09
Latitude 42.9450 ± 0.0045
Longitude 12.7487 ± 0.0049
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80437111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 452
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46225
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 80437111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-23 09:37:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2020-06-23T09:15:33.70 3.0 negative manual P -0.02 0
IV.MML1.HNZ. 2020-06-23T09:15:29.22 0.6 undecidable manual S 44 26.0517 131 0.25 63
IV.FDMO.HHZ. 2020-06-23T09:15:29.55 0.6 undecidable manual S 70 29.2485 127 -0.1 65
IT.MTCL.HGZ. 2020-06-23T09:15:27.84 1.0 undecidable manual S 75 21.0678 138 -0.18 32
IV.EL6.EHZ. 2020-06-23T09:15:27.77 1.0 undecidable manual P 34 51.3153 111 0.13 31
IV.CESI.HHZ. 2020-06-23T09:15:26.70 0.3 undecidable manual S 62 14.2746 149 -0.23 97
IV.LNSS.HHN. 2020-06-23T09:15:26.77 1.0 undecidable manual P 148 44.8218 115 0.05 32
IV.PF6.EHE. 2020-06-23T09:15:26.26 1.0 undecidable manual P 59 42.0246 116 -0.07 32
IV.ASSB.HHZ. 2020-06-23T09:15:26.95 1.0 undecidable manual S 326 13.0758 151 0.18 32
IV.ARRO.EHN. 2020-06-23T09:15:26.10 1.0 undecidable manual P 178 40.626 117 -0.04 32
IV.CSP1.EHZ. 2020-06-23T09:15:26.13 1.0 undecidable manual P 66 40.4262 118 0.02 32
IV.MURB.HHE. 2020-06-23T09:15:25.77 1.0 undecidable manual P 333 39.627 118 -0.24 31
IV.SNTG.HHZ. 2020-06-23T09:15:25.72 0.6 undecidable manual P 24 37.7289 119 -0.03 64
IV.MC2.EHZ. 2020-06-23T09:15:25.39 1.0 undecidable manual P 96 35.9418 121 -0.12 32
IV.NRCA.HNZ. 2020-06-23T09:15:25.19 1.0 undecidable manual P 112 32.1456 124 0.17 32
IV.FOSV.EHE. 2020-06-23T09:15:25.80 1.0 undecidable manual P 1 38.8278 119 -0.09 32
IV.FDMO.HHZ. 2020-06-23T09:15:24.78 1.0 undecidable manual P 70 29.2485 127 0.12 32
IV.ATCC.EHZ. 2020-06-23T09:15:24.17 1.0 undecidable manual P 342 28.0497 129 -0.34 31
IV.MML1.HNZ. 2020-06-23T09:15:24.50 1.0 undecidable manual P 44 26.0517 131 0.23 32
IV.CESI.HHZ. 2020-06-23T09:15:23.20 1.0 undecidable manual P 62 14.2746 149 0.11 33
IT.MTCL.HGZ. 2020-06-23T09:15:23.84 1.0 undecidable manual P 75 21.0678 138 0.12 33
IT.GNU.HGN. 2020-06-23T09:15:23.87 1.0 undecidable manual P 223 21.3675 137 0.12 33
IV.ASSB.HHZ. 2020-06-23T09:15:23.08 0.3 undecidable manual P 326 13.0758 151 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.0 0.00012594851 0.2368 AML other m 2020-06-23T09:15:27.90
IV.ASSB.HHN. ML:0.0 0.00014098363 0.1216 AML other m 2020-06-23T09:15:27.83
IV.CESI.HNE. ML:1.2 0.00008078349999999998 0.0896 AML other m 2020-06-23T09:15:26.82
IV.CESI.HHN. ML:1.4 0.00012253385 0.16 AML other m 2020-06-23T09:15:26.76
IV.CESI.HHE. ML:1.2 0.00009143826499999999 0.0832 AML other m 2020-06-23T09:15:26.82
IV.CESI.HNN. ML:1.4 0.00013112855 0.1792 AML other m 2020-06-23T09:15:26.68
IV.FDMO.HHE. ML:0.8 0.000026582389999999997 0.2048 AML other m 2020-06-23T09:15:29.89
IV.FDMO.HHN. ML:1.1 0.000045650444999999996 0.2368 AML other m 2020-06-23T09:15:29.84
IV.SNTG.HHN. ML:0.5 0.0000115478 0.1408 AML other m 2020-06-23T09:15:33.62
IV.SNTG.HHE. ML:0.7 0.000013100829999999999 0.1216 AML other m 2020-06-23T09:15:33.32
IV.SNTG.HNE. ML:1.6 0.00010863025 0.4288 AML other m 2020-06-23T09:15:35.59
IV.SNTG.HNN. ML:1.8 0.0001703215 0.64 AML other m 2020-06-23T09:15:41.20
IV.BADI.EHE. ML:1.5 0.000042712255000000005 0.0768 AML other m 2020-06-23T09:15:35.18
IV.BADI.EHN. ML:1.5 0.00004700943499999999 0.1216 AML other m 2020-06-23T09:15:35.25
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