Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 19-08-2020 and time 12:34:13 (UTC) in region 7 km E Nocera Umbra (PG)

A magnitude ML 1.1 earthquake occured in region: 7 km E Nocera Umbra (PG), on

  • 19-08-2020 12:34:13 (UTC)
  • 19-08-2020 14:34:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1290, 12.8680 at 15 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.

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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
Nocera Umbra PG 7 5839 5839
Sefro MC 7 422 6261
Fiuminata MC 9 1402 7663
Serravalle di Chienti MC 9 1070 8733
Pioraco MC 11 1134 9867
Valtopina PG 12 1398 11265
Gualdo Tadino PG 13 15208 26473
Esanatoglia MC 15 2034 28507
Muccia MC 15 915 29422
Camerino MC 16 6974 36396
Pieve Torina MC 18 1458 37854
Castelraimondo MC 18 4587 42441
Matelica MC 18 9981 52422
Monte Cavallo MC 19 145 52567
Pievebovigliana MC 19 866 53433

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
66 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
81 Km S of Fano (60888 inhabitants)
86 Km NW of Teramo (54892 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
88 Km E of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 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 1.1 2020-08-19
12:34:13		 43.1293 12.8682 15 2020-11-19
12:37:00		 Bollettino Sismico Italiano INGV 82784571
Reviewed
Rev100 		ML 1.1 2020-08-19
12:34:13		 43.1268 12.8677 17 2020-08-19
12:44:48		 Sala Sismica INGV-Roma 82146571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-19 12:34:13 ± 0.06
Latitude 43.1293 ± 0.0027
Longitude 12.8682 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82784571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 26
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82146571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-19 12:44:48

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82784571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-10 08:29:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-08-19T12:34:24.42 0.3 undecidable manual S 40 29.1486 104 0.15 72
IV.CSP1.EHZ. 2020-08-19T12:34:24.13 0.3 undecidable manual S 99 27.5502 106 0.25 70
IV.PIEI.HHZ. 2020-08-19T12:34:23.83 0.3 undecidable manual P 329 52.503 96 0.39 66
IV.FEMA.HNZ. 2020-08-19T12:34:23.02 0.3 undecidable manual S 141 23.6541 110 0.14 72
IV.PF6.EHZ. 2020-08-19T12:34:23.38 0.6 undecidable manual S 88 26.4513 107 -0.2 47
IV.FDMO.HHZ. 2020-08-19T12:34:22.12 0.3 undecidable manual S 120 20.5683 114 0.02 74
IV.GAVE.EHZ. 2020-08-19T12:34:22.88 0.3 positive manual P 177 48.5181 97 0.05 71
IV.ATCC.EHZ. 2020-08-19T12:34:22.10 0.3 undecidable manual S 289 19.4694 116 0.25 71
IV.FRON.EHZ. 2020-08-19T12:34:22.33 0.6 undecidable manual P 345 44.622 98 0.1 47
IT.MTCL.HGZ. 2020-08-19T12:34:21.45 0.6 undecidable manual S 145 18.3705 118 -0.14 49
IV.FOSV.HNZ. 2020-08-19T12:34:21.94 0.3 undecidable manual S 335 20.2686 114 -0.1 73
IV.ASSB.HHZ. 2020-08-19T12:34:21.72 0.3 undecidable manual S 241 19.4694 116 -0.14 73
IV.CESI.HHZ. 2020-08-19T12:34:20.64 0.6 undecidable manual S 168 14.0748 128 0.01 50
IV.SEF1.HNZ. 2020-08-19T12:34:19.48 0.3 undecidable manual S 73 6.6933 151 0.15 73
IV.PF6.EHZ. 2020-08-19T12:34:19.44 0.1 undecidable manual P 88 26.4513 107 -0.04 97
IV.CSP1.EHZ. 2020-08-19T12:34:19.71 0.3 undecidable manual P 99 27.5502 106 0.05 73
IV.EL6.EHZ. 2020-08-19T12:34:19.89 0.3 undecidable manual P 40 29.1486 104 0 73
IV.FIU1.HNZ. 2020-08-19T12:34:19.39 0.6 undecidable manual S 38 8.3805 145 -0.17 50
IV.MML1.HNZ. 2020-08-19T12:34:19.81 0.3 undecidable manual S 102 8.5803 145 0.22 72
IV.FEMA.HNZ. 2020-08-19T12:34:19.17 0.3 undecidable manual P 141 23.6541 110 0.09 73
IV.ATCC.EHZ. 2020-08-19T12:34:18.56 0.3 undecidable manual P 289 19.4694 116 0.07 74
IV.FDMO.HHZ. 2020-08-19T12:34:18.58 0.1 undecidable manual P 120 20.5683 114 -0.05 98
IV.FOSV.HNZ. 2020-08-19T12:34:18.45 0.3 undecidable manual P 335 20.2686 114 -0.15 72
IV.ASSB.HHZ. 2020-08-19T12:34:18.44 0.3 undecidable manual P 241 19.4694 116 -0.05 74
IV.MML1.HNZ. 2020-08-19T12:34:17.29 0.3 undecidable manual P 102 8.5803 145 0.1 75
IT.MTCL.HGZ. 2020-08-19T12:34:17.98 0.3 undecidable manual P 145 18.3705 118 -0.36 70
IV.CESI.HHZ. 2020-08-19T12:34:17.83 0.1 undecidable manual P 168 14.0748 128 0.05 100
IV.SEF1.HNZ. 2020-08-19T12:34:16.85 0.1 undecidable manual P 73 6.6933 151 -0.18 99
IV.FIU1.HNZ. 2020-08-19T12:34:16.91 0.1 undecidable manual P 38 8.3805 145 -0.25 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.3 0.00016399999999999997 1.58 AML other m 2020-08-19T12:34:20.84
IV.CESI.HHN. ML:1.3 0.0001465 1.72 AML other m 2020-08-19T12:34:21.94
IV.ATCC.EHE. ML:1.0 0.0000686 0.28 AML other m 2020-08-19T12:34:22.43
IV.ATCC.EHN. ML:1.0 0.00007225 0.32 AML other m 2020-08-19T12:34:22.35
IV.ASSB.HHE. ML:1.0 0.00006520000000000001 0.2 AML other m 2020-08-19T12:34:22.71
IV.ASSB.HHN. ML:1.0 0.00006220000000000001 1.28 AML other m 2020-08-19T12:34:22.20
IV.FRON.EHN. ML:0.9 0.00002615 0.66 AML other m 2020-08-19T12:34:30.27
IV.FRON.EHE. ML:0.8 0.0000183 1.34 AML other m 2020-08-19T12:34:35.99
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