Earthquake with magnitude of ML 1.3 on date 19-08-2021 and time 04:00:59 (Italy) in region 4 km W Visso (MC)

A magnitude ML 1.3 earthquake occured in region: 4 km W Visso (MC), on

  • 19-08-2021 02:00:59 (UTC)
  • 19-08-2021 04:00:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9310, 13.0430 at 8 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
Visso MC 4 1107 1107
Preci PG 6 724 1831
Monte Cavallo MC 8 145 1976
Ussita MC 8 444 2420
Castelsantangelo sul Nera MC 10 281 2701
Sellano PG 10 1079 3780
Fiordimonte MC 13 202 3982
Pieve Torina MC 13 1458 5440
Fiastra MC 15 559 5999
Pievebovigliana MC 15 866 6865
Acquacanina MC 16 121 6986
Norcia PG 16 4957 11943
Cerreto di Spoleto PG 16 1075 13018
Bolognola MC 17 142 13160
Muccia MC 17 915 14075
Serravalle di Chienti MC 17 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
96 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 2021-08-19
02:00:59
42.931 13.0428 8 2021-08-19
02:18:35
Sala Sismica INGV-Roma 94353191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 02:00:59 ± 0.05
Latitude 42.9310 ± 0.0027
Longitude 13.0428 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94353191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 278
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
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) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 94353191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 02:18:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-08-19T02:01:11.03 0.6 undecidable manual S 292 33.5442 103 -0.07 63
IV.TERO.HHZ. 2021-08-19T02:01:09.55 0.3 undecidable manual P 127 57.0984 50 -0.27 87
IV.CING.HHZ. 2021-08-19T02:01:08.89 0.3 undecidable manual P 14 50.8158 50 0.03 93
IV.MNTT.EHZ. 2021-08-19T02:01:08.17 0.3 undecidable manual P 72 47.1195 50 -0.12 92
IV.CSP1.EHZ. 2021-08-19T02:01:07.34 0.6 undecidable manual S 36 22.1556 109 0.04 65
IV.MML1.EHZ. 2021-08-19T02:01:07.01 0.6 undecidable manual S 344 21.0678 110 0.08 65
IV.SMA1.EHZ. 2021-08-19T02:01:07.22 0.3 undecidable manual P 144 40.9257 50 -0.12 93
IV.ATCC.EHZ. 2021-08-19T02:01:07.54 0.3 undecidable manual P 311 43.1235 50 -0.14 92
IV.MF5.EHZ. 2021-08-19T02:01:06.64 0.3 undecidable manual P 79 34.4433 102 0.41 88
IV.ASSB.HHZ. 2021-08-19T02:01:06.15 0.3 undecidable manual P 292 33.5442 103 0.09 95
IV.GAVE.HNZ. 2021-08-19T02:01:05.30 0.3 undecidable manual P 205 29.1486 105 0.1 95
IV.GUMA.HHZ. 2021-08-19T02:01:05.11 0.3 undecidable manual P 58 27.8499 105 0.16 94
IV.FDMO.HHZ. 2021-08-19T02:01:04.22 0.6 undecidable manual S 17 12.2766 122 0.05 66
IV.MC2.EHZ. 2021-08-19T02:01:04.50 0.6 undecidable manual S 100 12.0768 122 0.38 62
IV.NRCA.HHZ. 2021-08-19T02:01:04.24 0.6 undecidable manual S 152 12.2766 122 0.06 66
IV.CESI.HHZ. 2021-08-19T02:01:04.85 0.6 undecidable manual S 306 13.875 119 0.19 64
IV.CSP1.EHZ. 2021-08-19T02:01:03.76 0.3 undecidable manual P 36 22.1556 109 -0.1 96
IV.MML1.EHZ. 2021-08-19T02:01:03.85 0.3 undecidable manual P 344 21.0678 110 0.2 95
IV.MMO1.EHZ. 2021-08-19T02:01:03.92 0.3 undecidable manual P 99 23.3544 108 -0.17 95
IV.CESI.HHZ. 2021-08-19T02:01:02.68 0.3 undecidable manual P 306 13.875 119 0.34 93
IV.FDMO.HHZ. 2021-08-19T02:01:02.02 0.3 undecidable manual P 17 12.2766 122 -0.04 99
IT.MTCL.HGZ. 2021-08-19T02:01:02.87 0.3 undecidable manual S 333 7.7811 134 -0.08 99
IV.MC2.EHZ. 2021-08-19T02:01:02.06 0.3 undecidable manual P 100 12.0768 122 0.04 99
IV.NRCA.HHZ. 2021-08-19T02:01:02.08 0.3 undecidable manual P 152 12.2766 122 0.02 100
IV.FEMA.HNZ. 2021-08-19T02:01:01.62 0.3 undecidable manual S 9 3.4965 155 -0.45 92
IT.MTCL.HGZ. 2021-08-19T02:01:01.31 0.3 undecidable manual P 333 7.7811 134 -0.04 100
IV.FEMA.HNZ. 2021-08-19T02:01:00.51 0.3 undecidable manual P 9 3.4965 155 -0.34 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.00048550000000000004 0.16 AML other m 2021-08-19T02:01:04.55
IV.NRCA.HHE. ML:1.5 0.000399 0.18 AML other m 2021-08-19T02:01:04.79
IV.FDMO.HHE. ML:0.9 0.00009666913500000001 0.2416 AML other m 2021-08-19T02:01:05.68
IV.FDMO.HHN. ML:0.9 0.00010525000000000001 0.88 AML other m 2021-08-19T02:01:05.26
IV.CESI.HHN. ML:0.9 0.000086820695 0.3392 AML other m 2021-08-19T02:01:08.05
IV.CESI.HHE. ML:0.8 0.0000751 1.66 AML other m 2021-08-19T02:01:09.98
IV.GUMA.HHN. ML:1.7 0.00027100000000000003 0.18 AML other m 2021-08-19T02:01:10.10
IV.GUMA.HHE. ML:1.4 0.00014736344000000002 0.2608 AML other m 2021-08-19T02:01:11.15
IV.ASSB.HHN. ML:0.0 0.000043971495 0.2 AML other m 2021-08-19T02:01:11.27
IV.ASSB.HHE. ML:0.0 0.000042085289999999994 0.28 AML other m 2021-08-19T02:01:12.18
IV.TERO.HHN. ML:1.3 0.00004576131 0.16 AML other m 2021-08-19T02:01:17.64
IV.NRCA.HNE. ML:1.5 0.0003871617 0.1696 AML other m 2021-08-19T02:01:04.71
IV.NRCA.HNN. ML:1.5 0.0004225465 0.1488 AML other m 2021-08-19T02:01:04.48
IV.CSP1.EHE. ML:1.1 0.00008017213000000001 0.3392 AML other m 2021-08-19T02:01:10.61
IV.CSP1.EHN. ML:1.2 0.000110253735 0.4608 AML other m 2021-08-19T02:01:11.16
IV.GUMA.HNE. ML:1.6 0.0001988595 0.1904 AML other m 2021-08-19T02:01:10.11
IV.GUMA.HNN. ML:1.6 0.00020223315 0.2096 AML other m 2021-08-19T02:01:10.09
IV.TERO.HNE. ML:1.7 0.000111521555 0.7296 AML other m 2021-08-19T02:01:17.39
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