Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 25-10-2023 and time 15:46:26 (UTC) in region 1 km SE Pizzoli (AQ)

A magnitude ML 1.0 earthquake occured in region: 1 km SE Pizzoli (AQ), on

  • 25-10-2023 15:46:26 (UTC)
  • 25-10-2023 17:46:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4290, 13.3080 at 11 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.

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
Pizzoli AQ 1 4326 4326
Barete AQ 3 737 5063
Cagnano Amiterno AQ 8 1369 6432
Scoppito AQ 8 3727 10159
Capitignano AQ 10 665 10824
L'Aquila AQ 11 69753 80577
Montereale AQ 12 2581 83158
Tornimparte AQ 15 3187 86345
Campotosto AQ 15 542 86887
Lucoli AQ 16 1011 87898
Borbona RI 17 617 88515
Antrodoco RI 19 2588 91103
Crognaleto TE 19 1297 92400

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
71 Km W of Chieti (51815 inhabitants)
75 Km W of Pescara (121014 inhabitants)
77 Km SE of Foligno (57155 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
99 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
Reviewed
Rev100 		ML 1.0 2023-10-25
15:46:26		 42.4293 13.3075 11 2023-10-25
16:04:54		 Sala Sismica INGV-Roma 122385351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-25 15:46:26 ± 0.1
Latitude 42.4293 ± 0.0063
Longitude 13.3075 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122385351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29138
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 122385351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-25 16:04:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IY.CIRK.HHZ.00 2023-10-25T15:48:14.84 3.0 undecidable manual Sn -0.15 0
IV.BAG8.EHZ. 2023-10-25T15:48:07.00 3.0 undecidable manual Sn -7.83 0
MN.TRI.HHZ. 2023-10-25T15:48:01.93 3.0 undecidable manual Sg 3.01 0
GU.RRL.HHZ. 2023-10-25T15:47:53.79 3.0 undecidable manual Pn 8.95 0
IV.ALJA.HHZ. 2023-10-25T15:47:47.23 3.0 negative manual Pg 14 0
IV.IVGP.HHZ. 2023-10-25T15:47:44.05 3.0 undecidable manual Pg 17.139999 0
IV.CSNT.HHZ. 2023-10-25T15:47:23.71 3.0 undecidable manual Sg 2.17 0
IV.FREG.EHZ. 2023-10-25T15:47:18.14 3.0 positive manual Pn -4.21 0
IV.PAOL.HHZ. 2023-10-25T15:47:13.17 3.0 undecidable manual Sn -1 0
IV.PIEI.HHZ. 2023-10-25T15:47:08.25 3.0 undecidable manual S -0.26 0
IV.TOLF.HHZ. 2023-10-25T15:46:58.25 3.0 undecidable manual S -1.33 0
IV.GIUL.HHZ. 2023-10-25T15:46:54.02 3.0 undecidable manual S 2.81 0
IV.MURB.HNZ. 2023-10-25T15:46:46.37 3.0 positive manual P 0.46 0
IV.MPAG.EHZ. 2023-10-25T15:46:46.44 3.0 negative manual P -3.11 0
IV.LNSS.HHZ. 2023-10-25T15:46:36.56 0.3 undecidable manual S 311 29.1486 50 -0.13 95
IV.SMA1.EHZ. 2023-10-25T15:46:35.37 0.3 undecidable manual S 6 22.4553 50 0.46 90
IV.GIGS.HHZ. 2023-10-25T15:46:34.70 0.3 undecidable manual S 83 21.867 50 -0.06 98
IV.LNSS.HHZ. 2023-10-25T15:46:32.21 0.3 undecidable manual P 311 29.1486 50 -0.14 95
IV.CAMP.HHZ. 2023-10-25T15:46:32.70 0.6 undecidable manual S 35 14.4744 127 0.02 67
IV.TERO.HHZ. 2023-10-25T15:46:32.44 0.3 undecidable manual P 48 32.3454 50 -0.41 90
IV.GIGS.HHZ. 2023-10-25T15:46:31.04 0.3 undecidable manual P 83 21.867 50 -0.19 95
IV.RM33.EHZ. 2023-10-25T15:46:31.89 0.3 undecidable manual S 319 11.6772 133 -0.05 100
IV.FIAM.HHZ. 2023-10-25T15:46:31.74 0.3 undecidable manual P 221 23.754 50 0.22 95
IV.SMA1.EHZ. 2023-10-25T15:46:31.46 0.3 undecidable manual P 6 22.4553 50 0.14 96
IV.CAMP.HHZ. 2023-10-25T15:46:30.14 0.3 undecidable manual P 35 14.4744 127 0.11 98
IV.RM33.EHZ. 2023-10-25T15:46:29.45 0.3 undecidable manual P 319 11.6772 133 -0.16 98
MN.AQU.HHZ. 2023-10-25T15:46:29.78 0.3 undecidable manual P 136 11.5773 133 0.19 97
IV.FAGN.HHZ. 2023-10-25T15:46:27.76 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.0 0.00010614999999999999 1.6 AML other m 2023-10-25T15:46:31.16
IV.RM33.EHN. ML:1.1 0.00014250000000000002 1.78 AML other m 2023-10-25T15:46:32.95
IV.SMA1.EHE. ML:1.7 0.0003005 0.42 AML other m 2023-10-25T15:46:35.43
IV.SMA1.EHN. ML:1.4 0.000174 0.4 AML other m 2023-10-25T15:46:35.54
IV.NRCA.HHN. ML:1.2 0.0000447 0.48 AML other m 2023-10-25T15:46:41.05
IV.NRCA.HHE. ML:1.3 0.00005 1.12 AML other m 2023-10-25T15:46:43.58
IV.GIUL.HHN. ML:1.7 0.000056800000000000005 1.56 AML other m 2023-10-25T15:47:10.07
IV.RM33.HNE. ML:1.1 0.00012905919999999999 1.2288 AML other m 2023-10-25T15:46:32.99
IV.RM33.HNN. ML:1.2 0.0001608573 0.2176 AML other m 2023-10-25T15:46:31.95
IV.CAMP.HHE. ML:0.6 0.000038304445 0.2176 AML other m 2023-10-25T15:46:33.38
IV.CAMP.HHN. ML:0.8 0.00006128085 0.4992 AML other m 2023-10-25T15:46:34.30
IV.GIGS.HHE. ML:0.7 0.00003141729 0.1664 AML other m 2023-10-25T15:46:35.07
IV.GIGS.HHN. ML:0.7 0.000027541844999999998 0.128 AML other m 2023-10-25T15:46:35.39
IV.LNSS.HHE. ML:1.0 0.000046912019999999995 0.8576 AML other m 2023-10-25T15:46:36.90
IV.LNSS.HHN. ML:0.8 0.00003469517 0.2176 AML other m 2023-10-25T15:46:36.79
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