Earthquake with magnitude of ML 1.0 on date 19-08-2020 and time 02:17:23 (Italy) in region 5 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 1.0 earthquake occured in region: 5 km SW Castelsantangelo sul Nera (MC), on

  • 19-08-2020 00:17:23 (UTC)
  • 19-08-2020 02:17:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8630, 13.1130 at 10 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
Castelsantangelo sul Nera MC 5 281 281
Preci PG 6 724 1005
Visso MC 8 1107 2112
Norcia PG 8 4957 7069
Ussita MC 9 444 7513
Sellano PG 15 1079 8592
Cerreto di Spoleto PG 17 1075 9667
Monte Cavallo MC 17 145 9812
Bolognola MC 17 142 9954
Cascia PG 18 3217 13171
Montemonaco AP 18 604 13775
Arquata del Tronto AP 18 1178 14953
Montegallo AP 18 523 15476
Acquacanina MC 19 121 15597
Fiordimonte MC 20 202 15799
Fiastra MC 20 559 16358

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 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
Bulletin
Rev1000
ML 1.0 2020-08-19
00:17:23
42.863 13.1128 10 2020-11-19
12:36:59
Bollettino Sismico Italiano INGV 82614531
Reviewed
Rev100
ML 1.0 2020-08-19
00:17:23
42.8577 13.116 9 2020-08-19
00:24:23
Sala Sismica INGV-Roma 82131991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-19 00:17:23 ± 0.04
Latitude 42.8630 ± 0.0018
Longitude 13.1128 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82614531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 271
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
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) 39
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47214
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 82614531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-04 08:18:18

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 82131991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-19 00:24:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HNZ. 2020-08-19T00:18:02.36 3.0 undecidable manual S -0.3 0
IV.NARO.HHZ. 2020-08-19T00:17:37.29 3.0 positive manual P -2.6 0
IV.SMA1.EHZ. 2020-08-19T00:17:33.89 0.3 undecidable manual S 145 31.5462 50 -0.14 71
IV.MML1.EHZ. 2020-08-19T00:17:33.44 0.6 undecidable manual S 338 30.0477 50 -0.2 47
IV.T1299.HNE. 2020-08-19T00:17:33.60 0.3 undecidable manual S 151 28.8489 50 0.27 70
IV.PF6.EHZ. 2020-08-19T00:17:33.69 0.3 undecidable manual S 12 31.2465 50 -0.25 70
IV.GUMA.HHZ. 2020-08-19T00:17:33.57 0.3 undecidable manual S 39 28.5492 50 0.32 69
IV.LNSS.HHZ. 2020-08-19T00:17:33.54 0.3 undecidable manual S 192 29.4483 50 0.06 73
IV.GAVE.EHZ. 2020-08-19T00:17:32.42 0.3 undecidable manual S 223 25.9518 50 -0.14 72
IV.ATCC.EHZ. 2020-08-19T00:17:32.56 0.6 undecidable manual P 313 52.4031 50 -0.03 47
IV.MTRA.EHZ. 2020-08-19T00:17:32.12 0.3 undecidable manual S 117 25.9518 50 -0.42 68
IV.MOMA.HHZ. 2020-08-19T00:17:31.60 0.1 undecidable manual P 262 44.622 50 0.21 92
IV.MNTT.EHZ. 2020-08-19T00:17:31.69 0.6 undecidable manual P 60 45.0216 50 0.24 46
IV.CESI.HHZ. 2020-08-19T00:17:31.71 0.1 undecidable manual S 313 23.0547 50 -0.07 98
IV.TERO.HHZ. 2020-08-19T00:17:31.62 0.6 undecidable manual P 123 48.1185 50 -0.3 45
IV.OFFI.HHZ. 2020-08-19T00:17:31.99 0.6 undecidable manual P 80 47.2194 50 0.2 46
IV.SAP2.EHZ. 2020-08-19T00:17:30.14 0.3 undecidable manual P 42 34.8429 50 0.26 69
IV.FDMO.HHZ. 2020-08-19T00:17:30.34 0.3 undecidable manual S 354 19.3695 118 -0.29 71
IV.ASSB.HHZ. 2020-08-19T00:17:30.84 0.1 undecidable manual P 299 41.9247 50 -0.13 94
IV.ARRO.EHZ. 2020-08-19T00:17:30.81 0.6 undecidable manual P 222 42.3243 50 -0.23 46
IV.RM33.EHZ. 2020-08-19T00:17:30.91 0.6 undecidable manual P 168 40.1265 50 0.21 46
IT.MTCL.HGZ. 2020-08-19T00:17:29.84 0.3 undecidable manual S 328 17.1717 121 -0.14 73
IV.LNSS.HHZ. 2020-08-19T00:17:29.03 0.1 undecidable manual P 192 29.4483 50 -0.02 98
IV.SMA1.EHZ. 2020-08-19T00:17:29.30 0.3 undecidable manual P 145 31.5462 50 -0.07 72
IV.T1299.HNE. 2020-08-19T00:17:29.07 0.3 undecidable manual P 151 28.8489 50 0.1 72
IV.MF5.EHZ. 2020-08-19T00:17:29.62 0.1 undecidable manual P 64 31.4463 50 0.27 93
IV.MMO1.HNN. 2020-08-19T00:17:29.83 0.3 undecidable manual S 77 17.871 120 -0.35 70
IV.PF6.EHZ. 2020-08-19T00:17:29.20 0.3 undecidable manual P 12 31.2465 50 -0.12 72
IV.GUMA.HHZ. 2020-08-19T00:17:29.07 0.1 undecidable manual P 39 28.5492 50 0.15 96
IV.MTRA.EHZ. 2020-08-19T00:17:28.29 0.1 undecidable manual P 117 25.9518 50 -0.22 95
IV.GAVE.EHZ. 2020-08-19T00:17:28.59 0.1 undecidable manual P 223 25.9518 50 0.07 98
IV.FEMA.HNZ. 2020-08-19T00:17:28.54 0.3 undecidable manual S 335 12.0768 131 -0.01 76
IV.MML1.EHZ. 2020-08-19T00:17:28.88 0.6 undecidable manual P 338 30.0477 50 -0.26 47
IV.CESI.HHZ. 2020-08-19T00:17:28.14 0.1 undecidable manual P 313 23.0547 50 0.07 98
IV.MMO1.HNN. 2020-08-19T00:17:27.02 0.1 undecidable manual P 77 17.871 120 -0.13 98
IV.MC2.EHZ. 2020-08-19T00:17:27.73 0.3 undecidable manual S 49 8.1807 142 0.13 75
IT.MTCL.HGZ. 2020-08-19T00:17:27.09 0.1 undecidable manual P 328 17.1717 121 0.06 99
IV.FDMO.HHZ. 2020-08-19T00:17:27.40 0.1 undecidable manual P 354 19.3695 118 -0.01 100
IV.NRCA.HNZ. 2020-08-19T00:17:26.54 0.3 undecidable manual S 178 3.2967 163 -0.25 73
IV.FEMA.HNZ. 2020-08-19T00:17:26.47 0.1 undecidable manual P 335 12.0768 131 0.26 96
IV.NRCA.HNZ. 2020-08-19T00:17:25.37 0.1 negative manual P 178 3.2967 163 0.18 99
IV.MC2.EHZ. 2020-08-19T00:17:25.92 0.1 undecidable manual P 49 8.1807 142 0.26 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.000055900000000000004 1.46 AML other m 2020-08-19T00:17:30.77
IV.FDMO.HHN. ML:0.8 0.000043950000000000004 0.48 AML other m 2020-08-19T00:17:30.62
IV.CESI.HHN. ML:1.4 0.0001555 0.3 AML other m 2020-08-19T00:17:32.25
IV.CESI.HHE. ML:1.2 0.00009855 0.5 AML other m 2020-08-19T00:17:32.17
IV.MTRA.EHN. ML:1.4 0.0001265 1.68 AML other m 2020-08-19T00:17:32.86
IV.GAVE.EHE. ML:1.1 0.0000641 1.48 AML other m 2020-08-19T00:17:33.02
IV.MTRA.EHE. ML:1.2 0.0000859 1.18 AML other m 2020-08-19T00:17:33.85
IV.GAVE.EHN. ML:1.0 0.0000546 0.76 AML other m 2020-08-19T00:17:34.42
IV.ASSB.HHN. ML:1.0 0.000029849999999999997 0.38 AML other m 2020-08-19T00:17:37.53
IV.ASSB.HHE. ML:1.0 0.000029999999999999997 0.62 AML other m 2020-08-19T00:17:37.63
IV.TERO.HHE. ML:0.9 0.000019 1.26 AML other m 2020-08-19T00:17:38.97
IV.MOMA.HHN. ML:0.7 0.0000173 0.9 AML other m 2020-08-19T00:17:39.05
IV.TERO.HHN. ML:0.9 0.000021000000000000002 0.84 AML other m 2020-08-19T00:17:39.98
IV.MOMA.HHE. ML:0.9 0.000026349999999999997 0.18 AML other m 2020-08-19T00:17:39.78
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