Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 25-04-2023 and time 05:02:23 (Italy) in region 9 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.9 earthquake occured in region: 9 km SE Castelsantangelo sul Nera (MC), on

  • 25-04-2023 03:02:23 (UTC)
  • 25-04-2023 05:02:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8250, 13.1960 at 11 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 9 281 281
Norcia PG 9 4957 5238
Arquata del Tronto AP 10 1178 6416
Montegallo AP 11 523 6939
Montemonaco AP 14 604 7543
Ussita MC 14 444 7987
Preci PG 14 724 8711
Visso MC 15 1107 9818
Accumoli RI 15 667 10485
Montefortino FM 18 1178 11663
Acquasanta Terme AP 19 2916 14579
Cascia PG 19 3217 17796
Bolognola MC 19 142 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
92 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km E 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 1.9 2023-04-25
03:02:23		 42.8253 13.1963 11 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124602411
Reviewed
Rev100 		ML 1.8 2023-04-25
03:02:23		 42.8272 13.1972 11 2023-04-25
03:10:25		 Sala Sismica INGV-Roma 116721261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 03:02:23 ± 0.05
Latitude 42.8253 ± 0.0027
Longitude 13.1963 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124602411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 327
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
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) 63
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.73295
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 68
Type of magnitude ML
Reference to an origin 116721261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 03:10:25

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 60
Type of magnitude ML
Reference to an origin 124602411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-30 11:04:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2023-04-25T03:02:37.18 0.6 undecidable manual P 144 81.3519 50 -0.02 44
IV.PP3.EHZ. 2023-04-25T03:02:36.18 0.3 undecidable manual P 28 69.7746 50 0.76 55
IV.TERO.HHZ. 2023-04-25T03:02:36.38 0.6 undecidable manual S 124 40.1265 50 -0.06 47
IV.RM33.EHZ. 2023-04-25T03:02:35.42 0.6 undecidable manual S 178 35.1426 50 0.3 45
IV.SAP2.EHZ. 2023-04-25T03:02:35.55 0.6 undecidable manual S 29 34.3434 50 0.65 41
IV.MML1.EHZ. 2023-04-25T03:02:35.85 0.6 undecidable manual S 330 36.8298 50 0.29 45
IV.VCEL.EHZ. 2023-04-25T03:02:35.69 0.3 undecidable manual P 132 71.0733 50 0.08 67
IV.FOSV.EHZ. 2023-04-25T03:02:34.25 0.3 undecidable manual P 326 62.8926 50 -0.11 67
IV.GAVE.EHZ. 2023-04-25T03:02:34.22 0.6 undecidable manual S 239 28.749 50 0.82 39
IV.MF5.EHZ. 2023-04-25T03:02:34.01 0.6 undecidable manual S 50 27.9498 50 0.81 39
IV.LNSS.HHZ. 2023-04-25T03:02:33.42 0.3 undecidable manual S 207 27.75 50 0.27 69
IV.CING.HHZ. 2023-04-25T03:02:33.80 0.3 undecidable manual P 360 60.9945 50 -0.27 65
IV.EL6.EHZ. 2023-04-25T03:02:33.33 0.3 undecidable manual P 352 56.3991 50 -0.03 69
IV.GUMA.HHZ. 2023-04-25T03:02:33.72 0.3 undecidable manual S 23 28.6491 50 0.34 68
IV.CSP1.EHZ. 2023-04-25T03:02:33.33 0.3 undecidable manual S 1 29.5482 50 -0.3 69
IV.ATCC.EHZ. 2023-04-25T03:02:33.98 0.3 undecidable manual P 312 60.2952 50 0.03 69
IV.ASSB.HHZ. 2023-04-25T03:02:32.15 0.3 undecidable manual P 299 49.9167 50 -0.2 68
IV.MOMA.HHZ. 2023-04-25T03:02:32.59 0.3 undecidable manual P 268 51.0156 50 0.06 69
IV.FDMO.HHZ. 2023-04-25T03:02:32.03 0.3 undecidable manual S 339 25.0527 50 -0.39 68
IV.SMA1.EHZ. 2023-04-25T03:02:32.03 0.3 undecidable manual S 152 24.4533 50 -0.22 70
IV.SNTG.HHZ. 2023-04-25T03:02:32.57 0.3 undecidable manual P 337 52.0035 50 -0.1 69
IT.MTCL.HGZ. 2023-04-25T03:02:31.85 0.3 undecidable manual S 319 24.5532 50 -0.46 67
IV.MNTT.EHZ. 2023-04-25T03:02:31.62 0.1 positive manual P 51 41.7249 50 0.53 85
IV.ARRO.EHZ. 2023-04-25T03:02:31.38 0.3 undecidable manual P 232 44.5221 50 -0.14 69
IV.MML1.EHZ. 2023-04-25T03:02:30.22 0.3 undecidable manual P 330 36.8298 50 -0.11 70
IV.TERO.HHZ. 2023-04-25T03:02:30.52 0.1 undecidable manual P 124 40.1265 50 -0.32 89
IV.CAMP.HHZ. 2023-04-25T03:02:30.04 0.3 undecidable manual P 152 36.5412 50 -0.25 69
IV.SAP2.EHZ. 2023-04-25T03:02:30.08 0.3 undecidable manual P 29 34.3434 50 0.13 70
IV.MTRA.EHZ. 2023-04-25T03:02:30.07 0.3 undecidable manual S 115 17.9709 121 -0.38 69
IV.FEMA.HNE. 2023-04-25T03:02:30.71 0.6 undecidable manual S 322 19.2696 119 -0.13 48
IV.GUMA.HHZ. 2023-04-25T03:02:29.08 0.3 undecidable manual P 23 28.6491 50 0 73
IV.MF5.EHZ. 2023-04-25T03:02:29.12 0.3 undecidable manual P 50 27.9498 50 0.15 71
IV.MMO1.EHN. 2023-04-25T03:02:29.03 0.6 undecidable manual S 52 13.3755 129 -0.11 49
IV.RM33.EHZ. 2023-04-25T03:02:29.93 0.3 undecidable manual P 178 35.1426 50 -0.15 70
IV.GAVE.EHZ. 2023-04-25T03:02:29.12 0.1 positive manual P 239 28.749 50 0.03 97
IV.SMA1.EHZ. 2023-04-25T03:02:28.33 0.1 negative manual P 152 24.4533 50 -0.09 96
IV.CSP1.EHZ. 2023-04-25T03:02:28.99 0.1 positive manual P 1 29.5482 50 -0.23 93
IT.MTCL.HGZ. 2023-04-25T03:02:28.25 0.1 negative manual P 319 24.5532 50 -0.2 94
IV.LNSS.HHZ. 2023-04-25T03:02:28.97 0.1 positive manual P 207 27.75 50 0.03 97
7F.SIB2.EHE. 2023-04-25T03:02:28.45 0.3 undecidable manual S 50 11.3775 133 -0.16 73
IV.FDMO.HHZ. 2023-04-25T03:02:28.25 0.1 positive manual P 339 25.0527 50 -0.27 93
7F.SIB3.EHN. 2023-04-25T03:02:27.84 0.6 undecidable manual S 47 8.1807 143 -0.01 50
IV.MTRA.EHZ. 2023-04-25T03:02:27.27 0.1 negative manual P 115 17.9709 121 -0.11 97
IV.FEMA.HNE. 2023-04-25T03:02:27.61 0.1 negative manual P 322 19.2696 119 0 99
IV.NRCA.HNZ. 2023-04-25T03:02:27.83 0.1 undecidable manual S 278 6.6933 148 0.26 96
IV.NRCA.HNZ. 2023-04-25T03:02:26.07 0.1 undecidable manual P 278 6.6933 148 0.35 94
7F.SIB2.EHE. 2023-04-25T03:02:26.34 0.1 negative manual P 50 11.3775 133 0.02 100
IV.MMO1.EHN. 2023-04-25T03:02:26.65 0.1 negative manual P 52 13.3755 129 0.02 100
7F.SIB3.EHN. 2023-04-25T03:02:25.99 0.1 negative manual P 47 8.1807 143 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.8 0.008919999999999999 0.1 AML other m 2023-04-25T03:02:28.16
IV.NRCA.HNE. ML:2.8 0.008775 0.1 AML other m 2023-04-25T03:02:28.16
IV.NRCA.HHN. ML:2.5 0.005494999999999999 1.16 AML other m 2023-04-25T03:02:28.11
IV.NRCA.HNN. ML:2.5 0.004719999999999999 0.12 AML other m 2023-04-25T03:02:28.63
IV.MTRA.HNE. ML:2.0 0.0007475 0.68 AML other m 2023-04-25T03:02:30.87
IV.MTRA.HNN. ML:1.9 0.0006 0.28 AML other m 2023-04-25T03:02:30.80
IV.SMA1.EHE. ML:1.7 0.00027749999999999997 0.22 AML other m 2023-04-25T03:02:32.33
IT.MTCL.HGE. ML:3.8 0.039299999999999995 0.06 AML other m 2023-04-25T03:02:32.57
IV.SMA1.EHN. ML:1.8 0.000371 0.14 AML other m 2023-04-25T03:02:32.70
IV.FDMO.HHN. ML:1.5 0.000191 0.18 AML other m 2023-04-25T03:02:32.83
IV.FDMO.HHE. ML:1.5 0.0001835 0.16 AML other m 2023-04-25T03:02:33.36
IT.MTCL.HGN. ML:3.7 0.028300000000000002 0.92 AML other m 2023-04-25T03:02:33.99
IV.LNSS.HHN. ML:1.8 0.0003625 0.24 AML other m 2023-04-25T03:02:33.99
IV.CSP1.EHN. ML:2.1 0.000658 0.94 AML other m 2023-04-25T03:02:34.52
IV.GUMA.HNN. ML:2.4 0.0012349999999999998 1.66 AML other m 2023-04-25T03:02:34.11
IV.GUMA.HHN. ML:2.4 0.001365 1.6 AML other m 2023-04-25T03:02:34.15
IV.GUMA.HNE. ML:2.4 0.0014049999999999998 0.2 AML other m 2023-04-25T03:02:34.08
IV.GUMA.HHE. ML:2.5 0.001595 0.18 AML other m 2023-04-25T03:02:34.09
IV.MF5.EHE. ML:1.8 0.00035749999999999996 0.44 AML other m 2023-04-25T03:02:34.36
IV.GAVE.EHE. ML:1.9 0.00042800000000000005 0.14 AML other m 2023-04-25T03:02:34.71
IV.CSP1.EHE. ML:2.0 0.000513 0.16 AML other m 2023-04-25T03:02:34.75
IV.GAVE.EHN. ML:1.9 0.0003745 0.34 AML other m 2023-04-25T03:02:35.18
IV.LNSS.HHE. ML:1.9 0.00041500000000000006 0.52 AML other m 2023-04-25T03:02:35.17
IV.CAMP.HHE. ML:1.9 0.000319 0.2 AML other m 2023-04-25T03:02:35.63
IV.CAMP.HHN. ML:1.6 0.0001525 0.2 AML other m 2023-04-25T03:02:35.72
IV.SAP2.EHN. ML:2.8 0.0027249999999999996 0.2 AML other m 2023-04-25T03:02:36.19
IV.RM33.EHN. ML:1.6 0.00015900000000000002 0.26 AML other m 2023-04-25T03:02:36.33
IV.TERO.HHN. ML:1.9 0.0002715 0.08 AML other m 2023-04-25T03:02:36.69
IV.TERO.HHE. ML:1.8 0.0001915 0.12 AML other m 2023-04-25T03:02:36.78
IV.RM33.EHE. ML:1.6 0.0001685 0.58 AML other m 2023-04-25T03:02:36.61
IV.MML1.EHN. ML:1.6 0.00014450000000000002 1.8 AML other m 2023-04-25T03:02:36.02
IV.MML1.EHE. ML:1.5 0.0001125 0.6 AML other m 2023-04-25T03:02:37.12
IV.SAP2.EHE. ML:2.0 0.00040300000000000004 0.84 AML other m 2023-04-25T03:02:37.23
IV.MF5.EHN. ML:1.8 0.0003145 0.46 AML other m 2023-04-25T03:02:38.30
IV.MMUR.HNN. ML:2.7 0.0007585000000000001 0.42 AML other m 2023-04-25T03:02:38.57
IV.MNTT.EHN. ML:2.4 0.0007675 1.08 AML other m 2023-04-25T03:02:39.03
IV.ARRO.EHE. ML:1.4 0.0000872 0.16 AML other m 2023-04-25T03:02:39.39
IV.MNTT.EHE. ML:2.4 0.0007794999999999999 0.28 AML other m 2023-04-25T03:02:40.35
IV.ASSB.HHE. ML:1.7 0.0001315 0.42 AML other m 2023-04-25T03:02:40.70
IV.MOMA.HNN. ML:1.9 0.000183 1.66 AML other m 2023-04-25T03:02:40.00
IV.SNTG.HHN. ML:1.5 0.0000814 0.18 AML other m 2023-04-25T03:02:40.86
IV.MOMA.HHN. ML:1.4 0.00006305 0.2 AML other m 2023-04-25T03:02:41.00
IV.ARRO.EHN. ML:1.4 0.0000748 0.56 AML other m 2023-04-25T03:02:41.42
IV.ASSB.HHN. ML:1.7 0.00013800000000000002 0.8 AML other m 2023-04-25T03:02:41.84
IV.SNTG.HHE. ML:1.4 0.000060150000000000005 1.02 AML other m 2023-04-25T03:02:41.69
IV.MOMA.HNE. ML:2.0 0.00026450000000000003 0.86 AML other m 2023-04-25T03:02:41.34
IV.MOMA.HHE. ML:2.0 0.00023899999999999998 0.18 AML other m 2023-04-25T03:02:41.77
IV.MMUR.HNE. ML:2.6 0.0006364999999999999 1.6 AML other m 2023-04-25T03:02:42.06
IV.FOSV.EHN. ML:1.5 0.0000663 1.7 AML other m 2023-04-25T03:02:44.07
IV.ATCC.EHN. ML:1.6 0.00007895 0.42 AML other m 2023-04-25T03:02:44.21
IV.CING.HHE. ML:1.5 0.00006245 0.58 AML other m 2023-04-25T03:02:44.71
IV.ATCC.EHE. ML:1.6 0.0000847 0.5 AML other m 2023-04-25T03:02:44.43
IV.FOSV.EHE. ML:1.4 0.00004355 0.98 AML other m 2023-04-25T03:02:45.61
IV.CING.HHN. ML:1.4 0.0000535 0.62 AML other m 2023-04-25T03:02:45.27
IV.VCEL.EHN. ML:1.7 0.00008985 1.1 AML other m 2023-04-25T03:02:48.82
IV.EL6.EHE. ML:2.2 0.00035549999999999997 0.5 AML other m 2023-04-25T03:02:49.39
IV.EL6.EHN. ML:2.4 0.0005375 0.74 AML other m 2023-04-25T03:02:49.29
IV.T0110.HHN. ML:1.7 0.00007165 0.6 AML other m 2023-04-25T03:02:56.20
IV.VCEL.EHE. ML:1.7 0.00008025 1.46 AML other m 2023-04-25T03:03:00.91
IV.T0110.HHE. ML:1.6 0.0000571 1.2 AML other m 2023-04-25T03:03:01.79
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