Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-03-2023 and time 09:36:56 (UTC) in region 3 km SE Venarotta (AP)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Venarotta (AP), on

  • 01-03-2023 09:36:56 (UTC)
  • 01-03-2023 10:36:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8600, 13.5100 at 19 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
Venarotta AP 3 2066 2066
Roccafluvione AP 3 2010 4076
Ascoli Piceno AP 6 49407 53483
Palmiano AP 6 196 53679
Folignano AP 11 9241 62920
Rotella AP 11 906 63826
Force AP 12 1354 65180
Castignano AP 13 2796 67976
Acquasanta Terme AP 13 2916 70892
Comunanza AP 13 3166 74058
Appignano del Tronto AP 14 1785 75843
Valle Castellana TE 14 977 76820
Montedinove AP 14 488 77308
Montegallo AP 15 523 77831
Montefalcone Appennino FM 15 424 78255
Maltignano AP 15 2401 80656
Montemonaco AP 16 604 81260
Civitella del Tronto TE 16 5116 86376
Montalto delle Marche AP 16 2122 88498
Montefortino FM 17 1178 89676
Castel di Lama AP 17 8634 98310
Smerillo FM 17 365 98675
Offida AP 17 5058 103733
Sant'Egidio alla Vibrata TE 17 9811 113544
Montelparo FM 18 778 114322
Santa Vittoria in Matenano FM 18 1330 115652
Amandola FM 18 3629 119281
Castorano AP 18 2380 121661
Ancarano TE 19 1857 123518
Rocca Santa Maria TE 19 537 124055
Colli del Tronto AP 20 3668 127723
Monte Rinaldo FM 20 379 128102
Arquata del Tronto AP 20 1178 129280
Monte San Martino MC 20 765 130045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Teramo (54892 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
65 Km NW of Montesilvano (53738 inhabitants)
67 Km E of Foligno (57155 inhabitants)
73 Km NW of Pescara (121014 inhabitants)
78 Km E of Terni (111501 inhabitants)
78 Km NW of Chieti (51815 inhabitants)
84 Km S of Ancona (100861 inhabitants)
95 Km E 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 1.0 2023-03-01
09:36:56		 42.8605 13.5098 19 2023-03-01
09:43:41		 Sala Sismica INGV-Roma 114912461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-01 09:36:56 ± 0.24
Latitude 42.8605 ± 0.0045
Longitude 13.5098 ± 0.0110
Depth (km) 19 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114912461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 845
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 114912461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-01 09:43:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2023-03-01T09:37:11.79 0.6 undecidable manual S 212 45.8208 104 0.46 59
IV.MC2.EHZ. 2023-03-01T09:37:06.45 0.6 undecidable manual S 282 26.6511 117 -0.05 66
IV.TERO.HHZ. 2023-03-01T09:37:06.74 0.3 undecidable manual S 164 27.4503 116 0.05 99
IV.MF5.EHZ. 2023-03-01T09:37:04.03 0.3 undecidable manual S 344 14.6742 136 0.12 99
IV.RM33.EHZ. 2023-03-01T09:37:04.77 1.0 undecidable manual P 212 45.8208 104 -0.23 31
IV.MTRA.EHZ. 2023-03-01T09:37:03.72 0.3 undecidable manual S 219 14.7741 136 -0.21 97
IV.MC2.EHZ. 2023-03-01T09:37:02.16 1.0 negative manual P 282 26.6511 117 -0.06 33
IV.TERO.HHZ. 2023-03-01T09:37:02.29 0.6 undecidable manual P 164 27.4503 116 -0.04 66
IV.MTRA.EHZ. 2023-03-01T09:37:00.64 0.3 undecidable manual P 219 14.7741 136 -0.09 100
IV.MF5.EHZ. 2023-03-01T09:37:00.72 0.6 positive manual P 344 14.6742 136 -0.01 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.1 0.00008043700500000001 0.1216 AML other m 2023-03-01T09:37:03.99
IV.MTRA.EHN. ML:1.0 0.000061845605 0.1792 AML other m 2023-03-01T09:37:04.31
IV.MC2.EHE. ML:1.0 0.000043056595000000003 0.2432 AML other m 2023-03-01T09:37:07.40
IV.MC2.EHN. ML:1.5 0.00014318160000000003 0.2624 AML other m 2023-03-01T09:37:06.93
IV.TERO.HHE. ML:0.5 0.0000133587805 0.1024 AML other m 2023-03-01T09:37:06.86
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