Earthquake with magnitude of ML 1.2 on date 12-08-2023 and time 19:24:57 (Italy) in region 4 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km E Castelsantangelo sul Nera (MC), on

  • 12-08-2023 17:24:57 (UTC)
  • 12-08-2023 19:24:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8880, 13.2080 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
Castelsantangelo sul Nera MC 5 281 281
Ussita MC 8 444 725
Montemonaco AP 10 604 1329
Visso MC 11 1107 2436
Montegallo AP 11 523 2959
Bolognola MC 12 142 3101
Montefortino FM 13 1178 4279
Preci PG 14 724 5003
Norcia PG 14 4957 9960
Arquata del Tronto AP 15 1178 11138
Amandola FM 16 3629 14767
Acquacanina MC 16 121 14888
Fiastra MC 17 559 15447
Sarnano MC 18 3264 18711
Comunanza AP 19 3166 21877
Fiordimonte MC 19 202 22079

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
48 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
62 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
99 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
Reviewed
Rev100
ML 1.2 2023-08-12
17:24:57
42.888 13.2077 8 2023-08-12
17:36:01
Sala Sismica INGV-Roma 120061691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-12 17:24:57 ± 0.06
Latitude 42.8880 ± 0.0036
Longitude 13.2077 ± 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 120061691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 332
Semi-minor axis of confidence ellipse (meter) 280
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50992
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 23
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 120061691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-12 17:36:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2023-08-12T17:25:27.64 3.0 positive manual Pn 1.39 0
IV.PARC.HHZ. 2023-08-12T17:25:23.28 3.0 undecidable manual S -0.29 0
IV.LRP.EHZ. 2023-08-12T17:25:21.13 3.0 undecidable manual Pg 2.46 0
IV.RIBO.EHZ.01 2023-08-12T17:25:19.33 3.0 positive manual Pn 0.13 0
IV.FIAM.HHZ. 2023-08-12T17:25:19.10 3.0 undecidable manual S -2.39 0
IV.ATCC.EHZ. 2023-08-12T17:25:16.00 0.1 undecidable manual S 306 56.5989 50 0.42 84
IV.ASSB.HHZ. 2023-08-12T17:25:13.06 0.3 undecidable manual S 291 47.7189 50 -0.15 68
IV.SNTG.HHZ. 2023-08-12T17:25:12.57 0.3 undecidable manual S 332 46.1205 50 -0.2 67
IV.FRON.EHZ. 2023-08-12T17:25:10.37 3.0 undecidable manual S -3.72 0
IV.MML1.EHZ. 2023-08-12T17:25:08.25 0.3 undecidable manual S 323 31.5462 104 -0.26 68
IV.ATCC.EHZ. 2023-08-12T17:25:07.82 0.1 undecidable manual P 306 56.5989 50 -0.01 92
IV.PF6.EHZ. 2023-08-12T17:25:07.26 0.6 undecidable manual S 358 27.75 106 0.01 48
IV.CING.HHZ. 2023-08-12T17:25:07.39 0.1 undecidable manual P 359 54.1014 50 -0.06 91
IV.CESI.HNZ. 2023-08-12T17:25:07.53 0.3 undecidable manual S 298 27.8499 106 0.25 69
IV.ASSB.HHZ. 2023-08-12T17:25:06.27 0.3 undecidable manual P 291 47.7189 50 -0.2 67
IV.CSP1.EHZ. 2023-08-12T17:25:05.69 0.3 undecidable manual S 359 22.6551 109 0.14 71
IV.TERO.HHZ. 2023-08-12T17:25:05.52 0.3 undecidable manual P 132 43.7229 50 -0.32 66
IV.RM33.EHZ. 2023-08-12T17:25:05.38 3.0 positive manual P 0.05 0
IV.SNTG.HHZ. 2023-08-12T17:25:05.85 0.3 undecidable manual P 332 46.1205 50 -0.37 65
IV.LNSS.HHZ. 2023-08-12T17:25:04.24 0.1 undecidable manual P 203 34.4433 103 -0.09 94
IV.FDMO.HHZ. 2023-08-12T17:25:04.51 0.3 undecidable manual S 329 19.1697 112 0.09 72
IV.SMA1.EHN. 2023-08-12T17:25:03.40 0.1 undecidable manual P 160 30.4473 104 -0.15 93
IV.MML1.EHZ. 2023-08-12T17:25:03.62 0.3 undecidable manual P 323 31.5462 104 -0.14 70
IV.FEMA.HNZ. 2023-08-12T17:25:03.39 0.3 undecidable manual S 303 15.2736 117 0.2 71
IV.CESI.HNZ. 2023-08-12T17:25:02.95 0.3 undecidable manual P 298 27.8499 106 -0.09 71
IV.MTRA.HNE. 2023-08-12T17:25:02.06 0.3 undecidable manual P 133 21.1677 110 0.28 69
IV.CSP1.EHZ. 2023-08-12T17:25:02.00 0.1 undecidable manual P 359 22.6551 109 -0.05 97
IV.PF6.EHZ. 2023-08-12T17:25:02.86 0.3 undecidable manual P 358 27.75 106 -0.17 70
IV.MF5.EHE. 2023-08-12T17:25:02.68 0.1 undecidable manual P 62 23.2545 108 0.5 88
IV.SAP2.EHZ. 2023-08-12T17:25:02.89 0.3 undecidable manual P 34 27.8499 105 -0.17 70
IV.FEMA.HNZ. 2023-08-12T17:25:01.23 0.1 undecidable manual P 303 15.2736 117 0.55 87
IV.NRCA.HNZ. 2023-08-12T17:25:01.68 0.3 undecidable manual S 232 9.6792 129 0.12 73
IV.FDMO.HHZ. 2023-08-12T17:25:01.35 0.1 undecidable manual P 329 19.1697 112 -0.05 97
IV.MMO1.EHZ. 2023-08-12T17:25:01.79 0.1 undecidable manual S 83 9.7791 128 0.21 96
IT.MTCL.HGZ. 2023-08-12T17:25:01.58 0.3 undecidable manual P 305 20.5683 111 -0.09 72
7F.SIB1.EHZ. 2023-08-12T17:25:00.30 0.3 undecidable manual S 82 5.0949 146 -0.18 73
7F.SIB3.EHZ. 2023-08-12T17:25:00.14 0.3 undecidable manual S 106 5.2947 146 -0.36 70
IV.NRCA.HNZ. 2023-08-12T17:24:59.93 0.3 undecidable manual P 232 9.6792 129 0.19 72
IV.MMO1.EHZ. 2023-08-12T17:24:59.96 0.1 undecidable manual P 83 9.7791 128 0.2 96
IV.MC2.EHZ. 2023-08-12T17:24:59.43 0.3 undecidable manual S 330 2.997 159 -0.71 63
7F.SIB1.EHZ. 2023-08-12T17:24:59.25 0.1 undecidable manual P 82 5.0949 146 0.13 98
7F.SIB3.EHZ. 2023-08-12T17:24:59.11 0.1 undecidable manual P 106 5.2947 146 -0.03 100
7F.SIB2.EHZ. 2023-08-12T17:24:59.55 0.1 undecidable manual P 87 7.7811 135 0.09 98
IV.MC2.EHZ. 2023-08-12T17:24:58.75 0.3 undecidable manual P 330 2.997 159 -0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHE. ML:1.4 0.0003845 0.34 AML other m 2023-08-12T17:25:03.01
IV.MMO1.EHN. ML:1.3 0.00028496275 0.2048 AML other m 2023-08-12T17:25:04.14
IV.FDMO.HHN. ML:1.2 0.0001255 0.12 AML other m 2023-08-12T17:25:05.76
IV.CSP1.EHN. ML:1.6 0.00026133685 0.2816 AML other m 2023-08-12T17:25:06.21
IV.CSP1.EHE. ML:1.4 0.00018506830000000003 0.128 AML other m 2023-08-12T17:25:06.43
IV.FDMO.HHE. ML:1.1 0.00010320863 0.1152 AML other m 2023-08-12T17:25:04.76
IV.RM33.EHN. ML:1.0 0.0000323 0.72 AML other m 2023-08-12T17:25:12.50
IV.LNSS.HHN. ML:1.4 0.00010300000000000001 0.3 AML other m 2023-08-12T17:25:12.15
IV.LNSS.HHE. ML:1.2 0.00005929129499999999 0.1792 AML other m 2023-08-12T17:25:12.33
IV.ASSB.HHN. ML:1.1 0.0000353 0.08 AML other m 2023-08-12T17:25:13.39
IV.SNTG.HHN. ML:1.1 0.000037449999999999995 0.24 AML other m 2023-08-12T17:25:13.48
IV.SNTG.HHE. ML:0.9 0.000027373075 0.128 AML other m 2023-08-12T17:25:14.08
IV.RM33.EHE. ML:1.0 0.000027828035 0.1408 AML other m 2023-08-12T17:25:13.47
IV.ASSB.HHE. ML:1.1 0.000033091775000000006 0.1536 AML other m 2023-08-12T17:25:15.89
IV.CING.HHE. ML:0.9 0.00001868223 0.1664 AML other m 2023-08-12T17:25:16.16
IV.CING.HHN. ML:1.0 0.000022503135 0.0896 AML other m 2023-08-12T17:25:16.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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