Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 01-05-2023 and time 17:41:50 (Italy) in region 3 km W Campotosto (AQ)

A magnitude ML 1.8 earthquake occured in region: 3 km W Campotosto (AQ), on

  • 01-05-2023 15:41:50 (UTC)
  • 01-05-2023 17:41:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5460, 13.3340 at 18 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.

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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
Campotosto AQ 3 542 542
Capitignano AQ 4 665 1207
Montereale AQ 8 2581 3788
Amatrice RI 10 2657 6445
Barete AQ 11 737 7182
Crognaleto TE 12 1297 8479
Pizzoli AQ 13 4326 12805
Cagnano Amiterno AQ 13 1369 14174
Cittareale RI 16 482 14656
Cortino TE 17 656 15312
Fano Adriano TE 17 296 15608
Borbona RI 17 617 16225
Accumoli RI 18 667 16892
Pietracamela TE 18 271 17163
Posta RI 20 694 17857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km SE of Perugia (166134 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 1.8 2023-05-01
15:41:50		 42.5458 13.3343 19 2023-05-01
15:52:21		 Sala Sismica INGV-Roma 116941991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-01 15:41:50 ± 0.05
Latitude 42.5458 ± 0.0018
Longitude 13.3343 ± 0.0024
Depth (km) 19 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116941991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 218
Semi-minor axis of confidence ellipse (meter) 50
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45416
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 46
Type of magnitude ML
Reference to an origin 116941991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-01 15:52:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOCO.HHZ. 2023-05-01T15:42:22.93 3.0 undecidable manual Pg 2.61 0
IV.CING.HHZ. 2023-05-01T15:42:19.79 3.0 undecidable manual S 0.08 0
IV.EL6.EHZ. 2023-05-01T15:42:19.39 3.0 undecidable manual S 0.51 0
IV.MML1.EHZ. 2023-05-01T15:42:13.26 3.0 undecidable manual S 0.06 0
IV.FDMO.HHZ. 2023-05-01T15:42:09.39 3.0 undecidable manual S -0.46 0
IV.CING.HHZ. 2023-05-01T15:42:06.66 3.0 positive manual P -0.27 0
IV.ASSB.HHZ. 2023-05-01T15:42:04.94 3.0 undecidable manual P 0.32 0
IV.MMO1.EHZ. 2023-05-01T15:42:04.01 0.3 undecidable manual S 359 39.2274 105 0.19 70
IV.MML1.EHZ. 2023-05-01T15:42:03.22 3.0 undecidable manual P -0.05 0
IV.NRCA.HHZ. 2023-05-01T15:42:03.02 0.3 undecidable manual S 331 36.6411 107 -0.13 71
IV.MOMA.HHZ. 2023-05-01T15:42:03.29 3.0 positive manual P 0.2 0
IV.GAVE.EHZ. 2023-05-01T15:42:03.89 0.3 undecidable manual S 294 39.4272 105 0.01 73
IV.FIAM.HHZ. 2023-05-01T15:42:02.96 0.3 undecidable manual S 210 35.6421 107 0.07 72
IV.CESX.HHZ. 2023-05-01T15:42:02.14 3.0 positive manual P 0.21 0
IV.CSP1.EHZ. 2023-05-01T15:42:01.71 3.0 negative manual P -0.27 0
IV.FDMO.HHZ. 2023-05-01T15:42:01.15 3.0 positive manual P -0.24 0
IV.GUMA.HHZ. 2023-05-01T15:42:01.43 3.0 positive manual P 0.1 0
IV.CESI.HHZ. 2023-05-01T15:42:01.94 3.0 negative manual P -0.04 0
IV.MF5.EHZ. 2023-05-01T15:42:00.41 3.0 negative manual P 0.22 0
IV.LNSS.HHZ. 2023-05-01T15:42:00.25 0.3 undecidable manual S 285 24.8529 117 0.02 74
IV.GIGS.HHZ. 2023-05-01T15:41:59.54 0.3 undecidable manual S 118 22.0668 121 -0.04 75
IV.TERO.HHZ. 2023-05-01T15:41:59.93 0.3 undecidable manual S 69 23.5542 119 -0.01 75
IV.ARRO.EHZ. 2023-05-01T15:41:59.46 3.0 negative manual P -0.05 0
IV.T0110.HHZ. 2023-05-01T15:41:59.87 0.1 undecidable manual P 134 50.4162 101 -0.06 94
IV.MTRA.EHZ. 2023-05-01T15:41:59.74 0.3 undecidable manual S 12 23.9538 118 -0.28 71
IV.MMO1.EHZ. 2023-05-01T15:41:58.27 0.1 undecidable manual P 359 39.2274 105 0.03 97
IV.GAVE.EHZ. 2023-05-01T15:41:58.16 0.1 undecidable manual P 294 39.4272 105 -0.12 95
IV.FIAM.HHZ. 2023-05-01T15:41:57.60 0.1 undecidable manual P 210 35.6421 107 -0.11 96
IV.SMA1.EHZ. 2023-05-01T15:41:57.08 0.3 undecidable manual S 0 9.3795 149 -0.06 76
IV.NRCA.HHZ. 2023-05-01T15:41:57.83 0.1 undecidable manual P 331 36.6411 107 -0.03 97
IV.RM33.EHZ. 2023-05-01T15:41:57.24 0.3 undecidable manual S 247 10.5783 145 -0.08 76
IV.LNSS.HHZ. 2023-05-01T15:41:56.24 0.1 undecidable manual P 285 24.8529 117 0.07 98
IV.MTRA.EHZ. 2023-05-01T15:41:56.10 0.1 undecidable manual P 12 23.9538 118 0.05 99
IV.CAMP.HHZ. 2023-05-01T15:41:56.66 0.3 undecidable manual S 100 6.1938 158 -0.1 76
IV.TERO.HHZ. 2023-05-01T15:41:56.10 0.1 undecidable manual P 69 23.5542 119 0.1 98
IV.GIGS.HHZ. 2023-05-01T15:41:55.76 0.1 undecidable manual P 118 22.0668 121 -0.03 100
IV.SMA1.EHZ. 2023-05-01T15:41:54.54 0.1 undecidable manual P 0 9.3795 149 0.15 99
IV.RM33.EHZ. 2023-05-01T15:41:54.59 0.1 undecidable manual P 247 10.5783 145 0.1 100
IV.CAMP.HHZ. 2023-05-01T15:41:54.32 0.1 undecidable manual P 100 6.1938 158 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHN. ML:1.7 0.0004265 1.62 AML other m 2023-05-01T15:41:57.88
IV.CAMP.HHE. ML:1.5 0.0002856316 0.2944 AML other m 2023-05-01T15:41:56.89
IV.RM33.EHN. ML:1.8 0.00059667205 0.2432 AML other m 2023-05-01T15:41:57.41
IV.RM33.HNN. ML:1.9 0.0006224098 0.2432 AML other m 2023-05-01T15:41:57.29
IV.SMA1.EHN. ML:1.6 0.00029070285 0.2816 AML other m 2023-05-01T15:41:58.56
IV.RM33.EHE. ML:1.7 0.00041131359999999994 0.1024 AML other m 2023-05-01T15:41:57.67
IV.RM33.HNE. ML:1.7 0.00042786345 0.0896 AML other m 2023-05-01T15:41:57.67
IV.SMA1.EHE. ML:2.0 0.0008571836 0.2176 AML other m 2023-05-01T15:41:57.74
IV.TERO.HHN. ML:1.4 0.00011744819 0.0768 AML other m 2023-05-01T15:42:00.77
IV.TERO.HHE. ML:1.5 0.00015033954999999998 0.1792 AML other m 2023-05-01T15:42:00.12
IV.MTRA.HNE. ML:2.0 0.00048255400000000006 0.1792 AML other m 2023-05-01T15:42:00.21
IV.MTRA.HNN. ML:2.0 0.000561 0.34 AML other m 2023-05-01T15:42:00.22
IV.MTRA.EHN. ML:2.0 0.0005629999999999999 0.34 AML other m 2023-05-01T15:42:00.22
IV.LNSS.HHN. ML:2.1 0.000616 0.18 AML other m 2023-05-01T15:42:00.62
IV.LNSS.HHE. ML:2.0 0.00049777035 0.192 AML other m 2023-05-01T15:42:00.49
IV.MTRA.EHE. ML:2.0 0.0004894098000000001 0.1792 AML other m 2023-05-01T15:42:00.21
IV.T0110.HHE. ML:1.5 0.00006975 1.58 AML other m 2023-05-01T15:42:09.89
IV.FDMO.HHE. ML:1.7 0.00010605 0.18 AML other m 2023-05-01T15:42:09.45
IV.FDMO.HHN. ML:1.8 0.00012472225 0.2816 AML other m 2023-05-01T15:42:09.45
IV.GUMA.HHN. ML:1.9 0.00014928872 0.2048 AML other m 2023-05-01T15:42:11.64
IV.CESI.HHN. ML:1.9 0.0001518977 0.2048 AML other m 2023-05-01T15:42:11.23
IV.CSP1.EHE. ML:2.0 0.0001733989 0.1152 AML other m 2023-05-01T15:42:11.74
IV.CSP1.EHN. ML:2.1 0.000236 0.26 AML other m 2023-05-01T15:42:11.80
IV.CESI.HHE. ML:1.6 0.00007587392 0.1408 AML other m 2023-05-01T15:42:12.37
IV.GUMA.HHE. ML:1.9 0.00017398135 0.2176 AML other m 2023-05-01T15:42:12.54
IV.MML1.EHN. ML:1.6 0.0000623 0.2 AML other m 2023-05-01T15:42:13.09
IV.T0110.HHN. ML:1.5 0.0000686 0.56 AML other m 2023-05-01T15:42:15.82
IV.ASSB.HHN. ML:1.5 0.00004745 0.9 AML other m 2023-05-01T15:42:17.76
IV.ASSB.HHE. ML:1.6 0.00004885 0.32 AML other m 2023-05-01T15:42:17.90
IV.MML1.EHE. ML:1.4 0.00004517901 0.2432 AML other m 2023-05-01T15:42:17.85
IV.TERO.HNE. ML:1.3 0.000110609345 0.0896 AML other m 2023-05-01T15:42:00.52
IV.TERO.HNN. ML:1.5 0.00016892224999999998 0.3584 AML other m 2023-05-01T15:42:04.94
IV.LNSS.HNE. ML:2.0 0.00045502790000000003 0.2048 AML other m 2023-05-01T15:42:00.51
IV.LNSS.HNN. ML:2.0 0.0005668324 0.1792 AML other m 2023-05-01T15:42:00.62
IV.MF5.EHE. ML:1.8 0.000152356775 0.3456 AML other m 2023-05-01T15:42:09.04
IV.MF5.EHN. ML:1.9 0.0001803227 0.3968 AML other m 2023-05-01T15:42:08.13
IV.GUMA.HNE. ML:2.1 0.00025012065 0.2176 AML other m 2023-05-01T15:42:12.65
IV.GUMA.HNN. ML:2.3 0.00041301665 0.2048 AML other m 2023-05-01T15:42:18.55
IV.CESI.HNE. ML:1.8 0.000109908 0.704 AML other m 2023-05-01T15:42:22.85
IV.CESI.HNN. ML:1.7 0.00010394108 0.192 AML other m 2023-05-01T15:42:11.24
IV.MML1.HNE. ML:1.9 0.000122887185 0.6656 AML other m 2023-05-01T15:42:23.24
IV.MML1.HNN. ML:1.8 0.000100988645 0.5888 AML other m 2023-05-01T15:42:29.86
IV.MOMA.HHE. ML:1.5 0.000054979274999999995 0.3456 AML other m 2023-05-01T15:42:14.16
IV.MOMA.HHN. ML:1.2 0.000025569435000000002 0.1536 AML other m 2023-05-01T15:42:21.14
IV.MOMA.HNE. ML:1.9 0.00013431115 0.9216 AML other m 2023-05-01T15:42:23.88
IV.MOMA.HNN. ML:2.0 0.00015975320000000001 0.8064 AML other m 2023-05-01T15:42:28.60
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