Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 19-04-2023 and time 04:57:51 (Italy) in region 2 km E Ussita (MC)

A magnitude ML 1.4 earthquake occured in region: 2 km E Ussita (MC), on

  • 19-04-2023 02:57:51 (UTC)
  • 19-04-2023 04:57:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9500, 13.1600 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ussita MC 2 444 444
Visso MC 6 1107 1551
Castelsantangelo sul Nera MC 6 281 1832
Bolognola MC 8 142 1974
Acquacanina MC 9 121 2095
Fiastra MC 10 559 2654
Fiordimonte MC 11 202 2856
Preci PG 13 724 3580
Monte Cavallo MC 14 145 3725
Pieve Torina MC 14 1458 5183
Pievebovigliana MC 14 866 6049
Montemonaco AP 15 604 6653
Montefortino FM 15 1178 7831
Sarnano MC 15 3264 11095
Amandola FM 16 3629 14724
Muccia MC 18 915 15639
Norcia PG 18 4957 20596
Montegallo AP 19 523 21119
Cessapalombo MC 20 512 21631
Gualdo MC 20 815 22446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
65 Km E of Perugia (166134 inhabitants)
69 Km N of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
94 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Fano (60888 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 1.4 2023-04-19
02:57:51		 42.9498 13.1602 10 2024-03-01
17:18:12		 Bollettino Sismico Italiano INGV 118802031
Reviewed
Rev100 		ML 1.5 2023-04-19
02:57:51		 42.9497 13.1558 11 2023-04-19
03:05:15		 Sala Sismica INGV-Roma 116500681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-19 02:57:51 ± 0.03
Latitude 42.9498 ± 0.0018
Longitude 13.1602 ± 0.0025
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 118802031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 243
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
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) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.65021
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 118802031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-29 10:32:09

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 116500681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-19 03:05:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2023-04-19T02:58:08.37 0.3 undecidable manual S 135 51.2154 50 0.13 69
IV.RM33.EHZ. 2023-04-19T02:58:07.82 0.3 undecidable manual S 175 49.1175 50 0.14 69
IV.LNSS.HHZ. 2023-04-19T02:58:05.52 0.3 undecidable manual S 194 39.7269 50 0.34 67
IV.ASSB.HHZ. 2023-04-19T02:58:05.83 0.6 undecidable manual S 284 41.9247 50 0.05 47
IV.SNTG.HHZ. 2023-04-19T02:58:04.71 0.6 undecidable manual S 332 38.2284 50 -0.08 46
IV.SMA1.EHZ. 2023-04-19T02:58:04.73 0.3 undecidable manual S 158 38.1285 50 -0.04 71
IV.GAVE.EHZ. 2023-04-19T02:58:04.31 0.6 undecidable manual S 217 35.8419 50 0.16 47
IV.FRON.EHZ. 2023-04-19T02:58:04.33 0.3 undecidable manual P 331 72.1722 50 -0.25 63
IV.SSFR.HHZ. 2023-04-19T02:58:03.15 0.6 undecidable manual P 331 61.9935 50 0.13 45
IV.MURB.HHZ. 2023-04-19T02:58:03.09 0.3 undecidable manual P 304 62.0934 50 0.06 68
IV.MOMA.HNZ. 2023-04-19T02:58:01.80 0.3 undecidable manual P 252 50.616 50 0.54 63
IV.TERO.HHZ. 2023-04-19T02:58:01.82 0.3 undecidable manual P 135 51.2154 50 0.47 64
IV.MTRA.HNZ. 2023-04-19T02:58:01.76 0.3 undecidable manual S 138 28.749 50 -0.5 64
IV.MF5.EHZ. 2023-04-19T02:58:01.73 0.1 undecidable manual S 80 24.6531 50 0.56 86
IV.SAP2.EHZ. 2023-04-19T02:58:01.76 0.6 undecidable manual S 50 25.3524 50 0.42 45
IV.FOSV.HNE. 2023-04-19T02:58:01.04 0.6 undecidable manual P 320 50.1165 50 -0.14 45
IV.RM33.EHZ. 2023-04-19T02:58:01.01 0.3 undecidable manual P 175 49.1175 50 -0.02 70
IV.CESI.HHZ. 2023-04-19T02:58:00.28 0.1 undecidable manual S 287 21.6672 115 0.05 97
IV.MML1.EHZ. 2023-04-19T02:58:00.71 0.3 undecidable manual S 320 23.754 113 -0.19 71
IV.CING.HNZ. 2023-04-19T02:58:00.69 0.6 undecidable manual P 3 47.3193 50 -0.06 46
IV.ASSB.HHZ. 2023-04-19T02:57:59.64 0.1 undecidable manual P 284 41.9247 50 -0.29 89
IV.PF6.EHZ. 2023-04-19T02:57:59.63 0.6 undecidable manual S 8 21.0678 116 -0.42 45
IV.MNTT.EHZ. 2023-04-19T02:57:59.72 0.1 undecidable manual P 70 37.4292 50 0.49 87
IV.SNTG.HHZ. 2023-04-19T02:57:59.00 0.1 undecidable manual P 332 38.2284 50 -0.35 88
IV.SMA1.EHZ. 2023-04-19T02:57:59.26 0.3 undecidable manual P 158 38.1285 50 -0.09 70
IV.LNSS.HHZ. 2023-04-19T02:57:59.43 0.1 undecidable manual P 194 39.7269 50 -0.15 92
IV.GUMA.HHZ. 2023-04-19T02:57:59.57 0.1 undecidable manual S 49 18.9699 118 0.17 95
IV.ASCOL.EHN. 2023-04-19T02:57:58.91 0.6 undecidable manual P 107 36.5412 50 -0.19 46
IV.GAVE.EHZ. 2023-04-19T02:57:58.78 0.1 undecidable manual P 217 35.8419 50 -0.2 92
IV.MNTP.HNZ. 2023-04-19T02:57:58.80 0.3 undecidable manual P 50 32.5452 50 0.32 68
IV.CSP1.EHZ. 2023-04-19T02:57:58.44 0.3 undecidable manual S 13 16.1727 122 -0.13 73
IT.MTCL.HGZ. 2023-04-19T02:57:58.11 0.1 undecidable manual S 291 13.9749 126 0.18 95
IV.MF5.EHZ. 2023-04-19T02:57:57.33 0.1 undecidable manual P 80 24.6531 50 0.07 97
IV.SAP2.EHZ. 2023-04-19T02:57:57.44 0.3 undecidable manual P 50 25.3524 50 0.08 73
IV.NRCA.HNZ. 2023-04-19T02:57:57.68 0.1 undecidable manual S 196 13.3755 127 -0.11 99
IV.FEMA.HNZ. 2023-04-19T02:57:57.14 0.6 undecidable manual S 279 9.0798 138 0.46 45
IV.MMO1.EHZ. 2023-04-19T02:57:57.84 0.1 undecidable manual S 112 14.6742 125 -0.29 95
7F.SIB2.EHZ. 2023-04-19T02:57:57.49 0.1 undecidable manual S 119 13.3755 127 -0.28 95
IV.MTRA.HNZ. 2023-04-19T02:57:57.50 0.3 undecidable manual P 138 28.749 50 -0.4 67
IV.FDMO.HHZ. 2023-04-19T02:57:57.19 0.1 undecidable manual S 328 11.2776 132 -0.03 100
7F.SIB3.EHZ. 2023-04-19T02:57:57.25 0.1 undecidable manual S 133 12.1767 130 -0.2 97
7F.SIB1.EHZ. 2023-04-19T02:57:57.20 0.3 undecidable manual S 124 10.7781 133 0.1 73
IV.GUMA.HHZ. 2023-04-19T02:57:56.35 0.1 undecidable manual P 49 18.9699 118 0.1 97
IV.CESI.HHZ. 2023-04-19T02:57:56.72 0.1 undecidable manual P 287 21.6672 115 0 98
IV.PF6.EHZ. 2023-04-19T02:57:56.31 0.1 undecidable manual P 8 21.0678 116 -0.31 93
IV.MML1.EHZ. 2023-04-19T02:57:56.89 0.1 undecidable manual P 320 23.754 113 -0.22 94
IV.CSP1.EHZ. 2023-04-19T02:57:55.71 0.1 undecidable manual P 13 16.1727 122 -0.06 98
IT.MTCL.HGZ. 2023-04-19T02:57:55.48 0.1 undecidable manual P 291 13.9749 126 0.09 98
IV.FDMO.HHZ. 2023-04-19T02:57:55.01 0.1 undecidable manual P 328 11.2776 132 0.03 99
7F.SIB3.EHZ. 2023-04-19T02:57:55.06 0.1 undecidable manual P 133 12.1767 130 -0.06 99
7F.SIB1.EHZ. 2023-04-19T02:57:55.08 0.1 undecidable manual P 124 10.7781 133 0.17 96
IV.NRCA.HNZ. 2023-04-19T02:57:55.39 0.1 undecidable manual P 196 13.3755 127 0.08 98
IV.MMO1.EHZ. 2023-04-19T02:57:55.42 0.1 undecidable manual P 112 14.6742 125 -0.09 98
7F.SIB2.EHZ. 2023-04-19T02:57:55.26 0.1 undecidable manual P 119 13.3755 127 -0.05 99
IV.FEMA.HNZ. 2023-04-19T02:57:54.99 0.1 undecidable manual P 279 9.0798 138 0.32 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.7 0.0006054999999999999 0.2 AML other m 2023-04-19T02:57:57.56
IV.FDMO.HHE. ML:1.4 0.00029832919999999997 0.1392 AML other m 2023-04-19T02:57:57.00
IV.NRCA.HHN. ML:1.8 0.0006395 0.1 AML other m 2023-04-19T02:57:57.90
IV.NRCA.HNN. ML:1.8 0.0006435 0.1 AML other m 2023-04-19T02:57:57.95
IV.MMO1.EHE. ML:1.9 0.000783 0.1 AML other m 2023-04-19T02:57:58.00
IV.MMO1.EHN. ML:1.5 0.0003101038 0.1008 AML other m 2023-04-19T02:57:58.44
IV.NRCA.HNE. ML:1.9 0.0008633901 0.1504 AML other m 2023-04-19T02:57:57.92
IV.NRCA.HHE. ML:1.9 0.0009225541500000001 0.1408 AML other m 2023-04-19T02:57:57.92
IV.CSP1.EHN. ML:1.6 0.0003224326 0.3184 AML other m 2023-04-19T02:57:59.77
IV.CSP1.EHE. ML:1.5 0.00027872855 0.1216 AML other m 2023-04-19T02:57:58.55
IV.GUMA.HNE. ML:1.8 0.00042753865000000004 0.2496 AML other m 2023-04-19T02:58:00.51
IV.GUMA.HHN. ML:1.8 0.0005675736 0.2208 AML other m 2023-04-19T02:57:59.86
IV.GUMA.HHE. ML:1.7 0.0003745 0.74 AML other m 2023-04-19T02:58:00.48
IV.GUMA.HNN. ML:1.6 0.00034216885 0.2192 AML other m 2023-04-19T02:57:59.85
IV.MML1.EHE. ML:1.3 0.000127 1.76 AML other m 2023-04-19T02:58:00.91
IV.MML1.EHN. ML:1.3 0.000129 0.16 AML other m 2023-04-19T02:58:00.89
IV.CESI.HHE. ML:1.3 0.00015099999999999998 0.76 AML other m 2023-04-19T02:58:01.66
IV.MF5.EHE. ML:1.8 0.00034599999999999995 0.24 AML other m 2023-04-19T02:58:02.14
IV.CESI.HHN. ML:1.2 0.00011722947999999999 0.2992 AML other m 2023-04-19T02:58:02.30
IV.MF5.EHN. ML:1.6 0.00021 0.58 AML other m 2023-04-19T02:58:02.32
IV.GAVE.EHE. ML:1.5 0.00012440000000000002 0.82 AML other m 2023-04-19T02:58:05.63
IV.LNSS.HHE. ML:1.4 0.00007795 1.62 AML other m 2023-04-19T02:58:05.89
IV.LNSS.HHN. ML:1.2 0.00005795 1.1 AML other m 2023-04-19T02:58:05.99
IV.ASSB.HHE. ML:1.4 0.00007314999999999999 0.26 AML other m 2023-04-19T02:58:06.58
IV.GAVE.EHN. ML:1.4 0.00009185 0.18 AML other m 2023-04-19T02:58:07.35
IV.ASSB.HHN. ML:1.4 0.00007455000000000001 0.7 AML other m 2023-04-19T02:58:07.33
IV.MNTT.EHE. ML:1.6 0.0001503 0.24 AML other m 2023-04-19T02:58:08.21
IV.MNTT.EHN. ML:1.7 0.000186 1.36 AML other m 2023-04-19T02:58:08.91
IV.RM33.EHN. ML:0.9 0.0000207 0.48 AML other m 2023-04-19T02:58:09.49
IV.RM33.EHE. ML:0.9 0.000021499999999999997 0.36 AML other m 2023-04-19T02:58:10.64
IV.TERO.HHE. ML:1.1 0.000033 1.08 AML other m 2023-04-19T02:58:10.41
IV.TERO.HHN. ML:1.1 0.0000363 1.34 AML other m 2023-04-19T02:58:12.01
IV.SSFR.HHE. ML:1.2 0.00003135 0.24 AML other m 2023-04-19T02:58:14.13
IV.MURB.HHN. ML:1.4 0.00005045 0.18 AML other m 2023-04-19T02:58:14.31
IV.SSFR.HHN. ML:1.3 0.000037749999999999996 0.72 AML other m 2023-04-19T02:58:14.58
IV.MURB.HHE. ML:1.5 0.0000639 0.32 AML other m 2023-04-19T02:58:14.97
IV.CESI.HNE. ML:1.4 0.0001557153 0.1696 AML other m 2023-04-19T02:58:01.29
IV.CESI.HNN. ML:1.3 0.0001226003 0.2608 AML other m 2023-04-19T02:58:00.53
IV.MML1.HNN. ML:1.4 0.00014429444499999998 0.1904 AML other m 2023-04-19T02:58:00.89
IV.MML1.HNE. ML:1.2 0.000098338145 0.24 AML other m 2023-04-19T02:58:00.91
IV.SNTG.HHE. ML:0.8 0.000023440490000000003 0.1408 AML other m 2023-04-19T02:58:05.89
IV.SNTG.HHN. ML:0.7 0.0000180829985 0.28 AML other m 2023-04-19T02:58:05.12
IV.SMA1.EHE. ML:0.8 0.000027386515 0.36 AML other m 2023-04-19T02:58:10.94
IV.SMA1.EHN. ML:0.9 0.00002993667 0.32 AML other m 2023-04-19T02:58:12.42
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