Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-08-2019 and time 00:06:58 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.8 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 22-08-2019 22:06:58 (UTC)
  • 23-08-2019 00:06:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8400, 13.2130 at 8 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 8 281 281
Montegallo AP 10 523 804
Arquata del Tronto AP 10 1178 1982
Norcia PG 11 4957 6939
Montemonaco AP 12 604 7543
Ussita MC 13 444 7987
Visso MC 14 1107 9094
Preci PG 15 724 9818
Montefortino FM 16 1178 10996
Accumoli RI 16 667 11663
Bolognola MC 17 142 11805
Acquasanta Terme AP 18 2916 14721
Amandola FM 20 3629 18350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
90 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 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 1.8 2019-08-22
22:06:58		 42.8397 13.2128 8 2019-11-13
14:31:07		 Bollettino Sismico Italiano INGV 73293671
Reviewed
Rev100 		ML 1.8 2019-08-22
22:06:58		 42.8423 13.2112 9 2019-08-22
22:14:28		 Sala Sismica INGV-Roma 71716991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 22:06:58 ± 0.06
Latitude 42.8397 ± 0.0027
Longitude 13.2128 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73293671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 411
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 1.00184
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 73293671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-16 21:58:22

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 71716991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 22:14:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2019-08-22T22:07:23.48 0.6 undecidable manual S 343 76.2681 50 1.31 28
IV.PE3.EHZ. 2019-08-22T22:07:18.59 0.6 undecidable manual P 329 111.1998 50 0.98 31
IV.EL6.EHZ. 2019-08-22T22:07:17.08 0.6 undecidable manual S 351 55.1004 50 0.57 41
IV.SNTG.HHZ. 2019-08-22T22:07:16.26 0.6 undecidable manual S 334 51.1155 50 0.81 38
IV.GIGS.HHZ. 2019-08-22T22:07:16.04 0.6 undecidable manual S 145 52.0035 50 0.35 44
IV.MPAG.EHZ. 2019-08-22T22:07:15.44 0.3 undecidable manual P 337 94.9383 50 0.33 61
IV.MGAB.HHZ. 2019-08-22T22:07:14.92 0.3 undecidable manual P 276 89.8434 50 0.6 57
IV.MNTT.EHZ. 2019-08-22T22:07:14.00 0.6 undecidable manual S 51 39.627 50 1.6 25
IV.T0110.HHZ. 2019-08-22T22:07:12.84 0.3 undecidable manual P 146 81.8514 50 -0.25 63
IV.TERO.HHZ. 2019-08-22T22:07:12.28 0.6 undecidable manual S 127 39.9267 50 -0.19 46
IV.RM33.EHZ. 2019-08-22T22:07:11.74 0.6 undecidable manual S 180 36.6411 50 0.14 47
IV.FAGN.HHZ. 2019-08-22T22:07:11.41 0.3 undecidable manual P 154 70.4739 50 0.07 67
IV.MURB.HHZ. 2019-08-22T22:07:11.95 0.3 undecidable manual P 310 72.9714 50 0.24 65
IV.VCEL.EHZ. 2019-08-22T22:07:11.67 0.3 undecidable manual P 134 71.1732 50 0.23 65
IV.CAMP.HHZ. 2019-08-22T22:07:11.07 0.6 undecidable manual S 155 37.3293 50 -0.7 40
IV.ARVD.HHZ. 2019-08-22T22:07:11.84 0.3 undecidable manual P 343 76.2681 50 -0.38 62
IV.FIAM.HHZ. 2019-08-22T22:07:10.01 0.3 undecidable manual P 187 63.8916 50 -0.31 65
IV.SAP2.EHZ. 2019-08-22T22:07:10.56 0.6 undecidable manual S 28 32.2455 104 0.4 45
IV.CESI.HHZ. 2019-08-22T22:07:09.66 0.6 undecidable manual S 306 31.0467 104 -0.09 48
IV.ATCC.EHZ. 2019-08-22T22:07:09.64 0.3 undecidable manual P 310 60.1953 50 -0.12 68
IV.LNSS.HHZ. 2019-08-22T22:07:09.71 0.6 undecidable manual S 208 29.8479 105 0.38 45
IV.CESX.HHZ. 2019-08-22T22:07:09.45 0.3 undecidable manual P 244 57.0984 50 0.18 67
IV.FOSV.EHZ. 2019-08-22T22:07:09.86 0.3 undecidable manual P 324 62.3931 50 -0.22 66
IV.GIGS.HHZ. 2019-08-22T22:07:08.18 0.3 undecidable manual P 145 52.0035 50 -0.3 66
IV.EL6.EHZ. 2019-08-22T22:07:08.43 0.1 undecidable manual P 351 55.1004 50 -0.53 83
IV.T1299.HNN. 2019-08-22T22:07:08.58 0.6 undecidable manual S 166 23.4543 108 1.35 30
IV.CSP1.EHZ. 2019-08-22T22:07:08.57 0.6 undecidable manual S 359 27.9498 106 -0.16 48
IV.MF5.EHZ. 2019-08-22T22:07:08.72 0.3 undecidable manual S 51 25.9518 107 0.68 62
IV.FDMO.HHZ. 2019-08-22T22:07:07.21 0.3 undecidable manual S 335 24.0537 108 -0.22 71
IV.ARRO.EHZ. 2019-08-22T22:07:07.34 0.1 undecidable manual P 232 46.5201 50 -0.3 89
IV.SMA1.EHZ. 2019-08-22T22:07:07.92 0.6 undecidable manual S 157 25.2525 107 0.1 48
IV.SNTG.HHZ. 2019-08-22T22:07:07.94 0.1 undecidable manual P 334 51.1155 50 -0.41 87
IV.FEMA.HNE. 2019-08-22T22:07:06.06 0.6 undecidable manual S 316 18.9699 112 0.29 47
IV.TERO.HHZ. 2019-08-22T22:07:06.10 0.3 undecidable manual P 127 39.9267 50 -0.52 64
IV.MNTT.EHZ. 2019-08-22T22:07:06.88 0.3 undecidable manual P 51 39.627 50 0.3 68
IV.CAMP.HHZ. 2019-08-22T22:07:05.69 0.3 undecidable manual P 155 37.3293 50 -0.54 64
IV.RM33.EHZ. 2019-08-22T22:07:05.88 0.3 undecidable manual P 180 36.6411 50 -0.24 69
IV.MTRA.EHZ. 2019-08-22T22:07:05.54 0.3 undecidable manual S 122 17.5713 114 0.22 72
IV.SAP2.EHZ. 2019-08-22T22:07:05.19 0.3 undecidable manual P 28 32.2455 104 -0.11 72
IV.MF5.EHZ. 2019-08-22T22:07:04.10 0.1 undecidable manual P 51 25.9518 107 0.03 98
IV.CESI.HHZ. 2019-08-22T22:07:04.78 0.3 undecidable manual P 306 31.0467 104 -0.27 69
IV.LNSS.HHZ. 2019-08-22T22:07:04.87 0.3 undecidable manual P 208 29.8479 105 0.05 73
IV.CSP1.EHZ. 2019-08-22T22:07:04.00 0.3 undecidable manual P 359 27.9498 106 -0.46 67
IT.MTCL.HGZ. 2019-08-22T22:07:03.53 0.1 undecidable manual P 315 24.3534 108 -0.24 94
IV.FDMO.HHZ. 2019-08-22T22:07:03.38 0.1 undecidable manual P 335 24.0537 108 -0.34 92
IV.T1299.HNN. 2019-08-22T22:07:03.81 0.1 undecidable manual P 166 23.4543 108 0.21 95
IV.SMA1.EHZ. 2019-08-22T22:07:03.84 0.3 negative manual P 157 25.2525 107 -0.1 97
IV.MC2.EHZ. 2019-08-22T22:07:02.62 0.3 undecidable manual S 346 8.1807 134 0.04 76
IV.MTRA.EHZ. 2019-08-22T22:07:02.65 0.1 undecidable manual P 122 17.5713 114 0.16 97
IV.NRCA.HNZ. 2019-08-22T22:07:02.84 0.3 undecidable manual S 265 8.0808 134 0.3 72
IV.MMO1.EHZ. 2019-08-22T22:07:02.84 0.3 undecidable manual S 54 11.3775 125 -0.6 66
IV.FEMA.HNE. 2019-08-22T22:07:02.85 0.1 undecidable manual P 316 18.9699 112 0.1 98
IV.NRCA.HNZ. 2019-08-22T22:07:01.10 0.1 undecidable manual P 265 8.0808 134 0.21 98
IV.MMO1.EHZ. 2019-08-22T22:07:01.17 0.1 undecidable manual P 54 11.3775 125 -0.24 96
IV.MC2.EHZ. 2019-08-22T22:07:00.83 0.1 positive manual P 346 8.1807 134 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.7 0.008745000000000001 0.16 AML other m 2019-08-22T22:07:03.18
IV.NRCA.HHN. ML:2.8 0.010015000000000001 0.12 AML other m 2019-08-22T22:07:03.18
IV.NRCA.HNE. ML:2.7 0.008215 0.1 AML other m 2019-08-22T22:07:03.20
IV.NRCA.HHE. ML:2.7 0.00833 0.1 AML other m 2019-08-22T22:07:03.20
IV.MTRA.EHN. ML:2.2 0.0014249999999999998 0.52 AML other m 2019-08-22T22:07:06.82
IV.MTRA.HNN. ML:2.2 0.001435 0.52 AML other m 2019-08-22T22:07:06.56
IV.MTRA.HNE. ML:2.2 0.0013555 0.56 AML other m 2019-08-22T22:07:06.31
IV.MTRA.EHE. ML:2.2 0.00133 0.56 AML other m 2019-08-22T22:07:06.31
IV.FDMO.HHN. ML:1.7 0.0003345 1.06 AML other m 2019-08-22T22:07:08.71
IV.CSP1.EHN. ML:2.0 0.0005095 0.24 AML other m 2019-08-22T22:07:09.74
IV.CSP1.EHE. ML:1.9 0.00038449999999999997 1.38 AML other m 2019-08-22T22:07:09.74
IV.MF5.EHN. ML:1.8 0.000341 0.54 AML other m 2019-08-22T22:07:10.01
IV.CESI.HHN. ML:2.0 0.00047450000000000004 0.22 AML other m 2019-08-22T22:07:10.13
IV.LNSS.HHN. ML:1.9 0.0004305 0.34 AML other m 2019-08-22T22:07:10.51
IV.LNSS.HHE. ML:2.0 0.000473 0.36 AML other m 2019-08-22T22:07:10.56
IV.FDMO.HHE. ML:1.7 0.00034599999999999995 0.7 AML other m 2019-08-22T22:07:10.97
IV.CESI.HHE. ML:1.8 0.0003155 1.02 AML other m 2019-08-22T22:07:10.47
IV.CAMP.HHN. ML:1.4 0.0000849 1.24 AML other m 2019-08-22T22:07:12.65
IV.SAP2.EHN. ML:2.7 0.0020700000000000002 1.08 AML other m 2019-08-22T22:07:12.87
IV.SAP2.EHE. ML:2.0 0.0004365 0.5 AML other m 2019-08-22T22:07:12.46
IV.TERO.HHN. ML:1.9 0.0002795 1.28 AML other m 2019-08-22T22:07:12.17
IV.TERO.HHE. ML:1.8 0.00023 0.24 AML other m 2019-08-22T22:07:13.17
IV.RM33.EHN. ML:1.7 0.0001835 0.28 AML other m 2019-08-22T22:07:13.77
IV.SMA1.EHN. ML:1.8 0.0004205 0.32 AML other m 2019-08-22T22:07:13.51
IV.CAMP.HHE. ML:1.5 0.0001075 0.38 AML other m 2019-08-22T22:07:13.99
IV.SMA1.EHE. ML:2.0 0.000618 1.4 AML other m 2019-08-22T22:07:14.18
IV.RM33.EHE. ML:1.6 0.0001565 0.24 AML other m 2019-08-22T22:07:14.59
IV.MNTT.EHN. ML:2.4 0.0008785 0.22 AML other m 2019-08-22T22:07:14.77
IV.MNTT.EHE. ML:2.2 0.0005875 1.22 AML other m 2019-08-22T22:07:14.34
IV.MF5.EHE. ML:1.7 0.00030649999999999997 0.68 AML other m 2019-08-22T22:07:15.22
IV.ARRO.EHE. ML:1.4 0.00008245 0.18 AML other m 2019-08-22T22:07:16.96
IV.SNTG.HHE. ML:1.6 0.00009784999999999999 0.14 AML other m 2019-08-22T22:07:16.96
IV.SNTG.HHN. ML:1.6 0.00011649999999999999 0.14 AML other m 2019-08-22T22:07:16.91
IV.ARRO.EHN. ML:1.4 0.0000704 1.24 AML other m 2019-08-22T22:07:16.30
IV.GIGS.HHE. ML:1.0 0.000024449999999999998 1.4 AML other m 2019-08-22T22:07:17.88
IV.EL6.EHE. ML:1.8 0.000163 0.98 AML other m 2019-08-22T22:07:19.52
IV.GIGS.HHN. ML:1.0 0.0000265 0.94 AML other m 2019-08-22T22:07:19.12
IV.CESX.HHN. ML:1.5 0.00006544999999999999 0.3 AML other m 2019-08-22T22:07:20.53
IV.ATCC.EHE. ML:1.7 0.00010835 0.42 AML other m 2019-08-22T22:07:20.86
IV.FOSV.EHE. ML:1.7 0.00008865 1.6 AML other m 2019-08-22T22:07:20.05
IV.CESX.HHE. ML:1.4 0.000057050000000000004 1.66 AML other m 2019-08-22T22:07:21.92
IV.FOSV.EHN. ML:1.8 0.00010755000000000001 1.1 AML other m 2019-08-22T22:07:21.19
IV.FIAM.HHE. ML:1.2 0.000028049999999999997 1.32 AML other m 2019-08-22T22:07:21.90
IV.EL6.EHN. ML:1.9 0.0001695 0.8 AML other m 2019-08-22T22:07:22.55
IV.FAGN.HHE. ML:1.7 0.0000889 0.42 AML other m 2019-08-22T22:07:24.53
IV.ARVD.HHN. ML:1.3 0.0000286 0.58 AML other m 2019-08-22T22:07:24.54
IV.ATCC.EHN. ML:1.7 0.00009315 0.44 AML other m 2019-08-22T22:07:24.91
IV.FAGN.HHN. ML:1.6 0.0000693 1.52 AML other m 2019-08-22T22:07:25.13
IV.ARVD.HHE. ML:1.5 0.0000488 1.48 AML other m 2019-08-22T22:07:25.17
IV.FIAM.HHN. ML:1.2 0.000029049999999999998 0.5 AML other m 2019-08-22T22:07:25.94
IV.MURB.HHN. ML:2.0 0.00013900000000000002 0.94 AML other m 2019-08-22T22:07:26.22
IV.MURB.HHE. ML:2.1 0.000186 0.4 AML other m 2019-08-22T22:07:28.72
IV.T0110.HHN. ML:1.8 0.00007785000000000001 1.5 AML other m 2019-08-22T22:07:28.05
IV.T0110.HHE. ML:1.6 0.00006245 0.44 AML other m 2019-08-22T22:07:34.74
IV.MPAG.EHN. ML:1.4 0.000027950000000000002 0.42 AML other m 2019-08-22T22:07:36.34
IV.MPAG.EHE. ML:1.5 0.000037449999999999995 0.98 AML other m 2019-08-22T22:07:38.57
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