Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 03-04-2023 and time 16:14:53 (UTC) in region 4 km NW Torricella Sicura (TE)

A magnitude ML 1.3 earthquake occured in region: 4 km NW Torricella Sicura (TE), on

  • 03-04-2023 16:14:53 (UTC)
  • 03-04-2023 18:14:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6860, 13.6280 at 18 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
Torricella Sicura TE 4 2641 2641
Campli TE 7 7209 9850
Teramo TE 7 54892 64742
Rocca Santa Maria TE 8 537 65279
Civitella del Tronto TE 10 5116 70395
Montorio al Vomano TE 11 8218 78613
Valle Castellana TE 12 977 79590
Cortino TE 12 656 80246
Basciano TE 14 2434 82680
Canzano TE 15 1934 84614
Folignano AP 15 9241 93855
Tossicia TE 16 1406 95261
Penna Sant'Andrea TE 16 1698 96959
Castellalto TE 16 7513 104472
Bellante TE 16 7152 111624
Fano Adriano TE 17 296 111920
Colledara TE 17 2179 114099
Maltignano AP 17 2401 116500
Cermignano TE 17 1649 118149
Sant'Egidio alla Vibrata TE 17 9811 127960
Castel Castagna TE 17 500 128460
Sant'Omero TE 18 5243 133703
Pietracamela TE 19 271 133974
Ascoli Piceno AP 19 49407 183381
Ancarano TE 19 1857 185238
Crognaleto TE 19 1297 186535
Torano Nuovo TE 20 1611 188146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Teramo (54892 inhabitants)
42 Km NE of L'Aquila (69753 inhabitants)
47 Km W of Montesilvano (53738 inhabitants)
54 Km W of Pescara (121014 inhabitants)
58 Km NW of Chieti (51815 inhabitants)
81 Km E of Foligno (57155 inhabitants)
81 Km E of Terni (111501 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 1.3 2023-04-03
16:14:53		 42.6855 13.6278 18 2024-03-01
17:18:08		 Bollettino Sismico Italiano INGV 117401821
Reviewed
Rev100 		ML 1.3 2023-04-03
16:14:53		 42.6862 13.6363 17 2023-04-03
17:13:09		 Sala Sismica INGV-Roma 116031391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 16:14:53 ± 0.11
Latitude 42.6855 ± 0.0045
Longitude 13.6278 ± 0.0110
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117401821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 795
Semi-minor axis of confidence ellipse (meter) 556
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61873
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 117401821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-16 08:42:39

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 116031391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 17:13:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATFO.HHZ. 2023-04-03T16:15:24.11 3.0 undecidable manual S 0.31 0
IV.MF5.EHZ. 2023-04-03T16:15:06.36 0.6 undecidable manual S 338 36.2415 106 0.76 40
IV.MMO1.EHZ. 2023-04-03T16:15:05.24 0.6 undecidable manual S 314 34.1436 108 0.18 48
IV.CESI.HHZ. 2023-04-03T16:15:05.28 0.3 undecidable manual P 301 68.6757 97 0.02 69
IV.SMA1.EHZ. 2023-04-03T16:15:02.97 0.6 undecidable manual S 256 24.6531 117 0.25 48
IV.GIGS.HHZ. 2023-04-03T16:15:02.98 0.6 undecidable manual S 190 26.1516 115 -0.1 49
IV.T0110.HHZ. 2023-04-03T16:15:02.66 0.3 undecidable manual P 166 52.0035 100 -0.07 71
IV.MTRA.EHZ. 2023-04-03T16:15:01.53 0.6 undecidable manual S 293 20.4684 123 -0.21 48
IV.NRCA.HHZ. 2023-04-03T16:15:01.66 0.1 undecidable manual P 292 44.9217 102 0 96
IV.VCEL.EHZ. 2023-04-03T16:15:00.53 0.1 undecidable manual P 152 36.6411 106 0.11 95
IV.ASCOL.HNE. 2023-04-03T16:15:00.74 0.6 undecidable manual S 350 18.6702 126 -0.61 44
IV.MF5.EHZ. 2023-04-03T16:15:00.49 0.1 undecidable manual P 338 36.2415 106 0.13 95
IV.TERO.HHZ. 2023-04-03T16:14:59.39 0.6 undecidable manual S 196 7.1928 155 0.03 51
IV.MMO1.EHZ. 2023-04-03T16:14:59.94 0.1 undecidable manual P 314 34.1436 108 -0.1 96
IV.MTRA.EHZ. 2023-04-03T16:14:58.08 0.1 undecidable manual P 293 20.4684 123 -0.05 100
IV.SMA1.EHZ. 2023-04-03T16:14:58.73 1.0 undecidable manual P 256 24.6531 117 0.04 25
IV.GIGS.HHZ. 2023-04-03T16:14:58.82 0.1 undecidable manual P 190 26.1516 115 -0.08 99
IV.ASCOL.HNE. 2023-04-03T16:14:57.68 0.1 undecidable manual P 350 18.6702 126 -0.22 97
IV.TERO.HHZ. 2023-04-03T16:14:56.89 0.1 undecidable manual P 196 7.1928 155 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:2.0 0.000886 0.08 AML other m 2023-04-03T16:14:59.55
IV.TERO.HNN. ML:2.0 0.00087924025 0.0768 AML other m 2023-04-03T16:14:59.55
IV.TERO.HNE. ML:1.7 0.00042553595 0.064 AML other m 2023-04-03T16:14:59.74
IV.TERO.HHE. ML:1.7 0.00041600000000000003 0.08 AML other m 2023-04-03T16:14:59.74
IV.MTRA.EHE. ML:1.3 0.0001250114 0.1536 AML other m 2023-04-03T16:15:02.16
IV.MTRA.EHN. ML:1.2 0.000096203065 0.1792 AML other m 2023-04-03T16:15:02.58
IV.SMA1.EHN. ML:0.7 0.000027282307999999996 1.5392 AML other m 2023-04-03T16:15:02.95
IV.GIGS.HHN. ML:0.7 0.000026552295 0.2816 AML other m 2023-04-03T16:15:03.06
IV.GIGS.HHE. ML:0.9 0.000035972265 0.2304 AML other m 2023-04-03T16:15:03.24
IV.SMA1.EHE. ML:1.0 0.00004690776 0.2304 AML other m 2023-04-03T16:15:03.54
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