Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 22-10-2023 and time 11:55:54 (UTC) in region 1 km N Pizzoli (AQ)

A magnitude ML 1.9 earthquake occured in region: 1 km N Pizzoli (AQ), on

  • 22-10-2023 11:55:54 (UTC)
  • 22-10-2023 13:55:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4460, 13.2970 at 13 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
Pizzoli AQ 1 4326 4326
Barete AQ 1 737 5063
Cagnano Amiterno AQ 6 1369 6432
Capitignano AQ 8 665 7097
Scoppito AQ 9 3727 10824
Montereale AQ 10 2581 13405
L'Aquila AQ 13 69753 83158
Campotosto AQ 14 542 83700
Borbona RI 15 617 84317
Tornimparte AQ 17 3187 87504
Lucoli AQ 18 1011 88515
Antrodoco RI 18 2588 91103
Posta RI 19 694 91797
Crognaleto TE 19 1297 93094
Micigliano RI 20 127 93221
Borgo Velino RI 20 972 94193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
55 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)
72 Km W of Chieti (51815 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
75 Km W of Pescara (121014 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
98 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 1.9 2023-10-22
11:55:54		 42.4463 13.2967 13 2023-10-22
12:05:35		 Sala Sismica INGV-Roma 122285981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-22 11:55:54 ± 0.05
Latitude 42.4463 ± 0.0027
Longitude 13.2967 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122285981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44876
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 45
Type of magnitude ML
Reference to an origin 122285981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-22 12:05:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHE. 2023-10-22T11:56:33.35 0.3 undecidable manual P 45.8208 3.008 0
IV.ASSB.HHZ. 2023-10-22T11:56:20.69 3.0 undecidable manual S -0.81 0
IV.MML1.EHZ. 2023-10-22T11:56:19.81 3.0 undecidable manual S -0.1 0
IV.CSP1.EHZ. 2023-10-22T11:56:18.31 3.0 undecidable manual S 0.3 0
IV.FDMO.HHZ. 2023-10-22T11:56:16.55 3.0 undecidable manual S -0.16 0
IV.ASSB.HHZ. 2023-10-22T11:56:09.47 3.0 negative manual P -0.11 0
IV.MNTT.EHZ. 2023-10-22T11:56:08.50 3.0 positive manual P 0.76 0
IV.MML1.EHZ. 2023-10-22T11:56:08.55 3.0 negative manual P -0.14 0
IV.CSP1.EHZ. 2023-10-22T11:56:07.32 3.0 negative manual P -0.3 0
IV.GUMA.HHZ. 2023-10-22T11:56:07.30 3.0 negative manual P 0.25 0
IV.FDMO.HHZ. 2023-10-22T11:56:06.71 3.0 positive manual P -0.18 0
IV.CESI.HHZ. 2023-10-22T11:56:06.61 3.0 positive manual P -0.59 0
IV.MF5.EHZ. 2023-10-22T11:56:06.02 3.0 positive manual P 0.1 0
IV.TERO.HHZ. 2023-10-22T11:56:05.80 0.3 undecidable manual S 52 31.8459 96 0.03 72
IV.CERT.HHZ. 2023-10-22T11:56:05.25 3.0 negative manual P -0.26 0
IV.VVLD.HHZ. 2023-10-22T11:56:05.15 3.0 undecidable manual P -1.82 0
IV.LNSS.HHZ. 2023-10-22T11:56:04.66 0.3 undecidable manual S 310 27.2505 98 0.12 71
IV.PTQR.HHZ. 2023-10-22T11:56:03.37 0.1 undecidable manual P 170 47.8188 93 -0.21 90
IV.GAVE.EHZ. 2023-10-22T11:56:03.00 0.1 undecidable manual P 310 42.7239 94 0.2 91
7F.SIB3.EHE. 2023-10-22T11:56:03.96 0.1 undecidable manual P 357 47.619 94 0.41 86
IV.T0110.HHZ. 2023-10-22T11:56:03.36 0.1 undecidable manual P 121 46.1205 94 0.04 93
7F.SIB1.EHE. 2023-10-22T11:56:03.91 0.1 undecidable manual P 358 49.8168 93 0.03 93
IV.GIGS.HHZ. 2023-10-22T11:56:03.13 0.3 undecidable manual S 88 22.6551 102 -0.21 70
7F.SIB2.EHE. 2023-10-22T11:56:03.69 0.1 undecidable manual P 1 49.3173 93 -0.12 91
IV.FIAM.HHZ. 2023-10-22T11:56:03.99 0.1 undecidable manual S 217 24.6531 100 0.12 95
IV.NRCA.HHZ. 2023-10-22T11:56:03.12 0.1 undecidable manual P 341 45.4212 94 -0.1 92
MN.AQU.HNZ. 2023-10-22T11:56:01.32 0.3 undecidable manual S 139 13.5753 120 0.26 71
IV.CAMP.HHZ. 2023-10-22T11:56:01.15 0.1 undecidable manual S 43 13.5753 120 0.09 98
IV.MTRA.EHZ. 2023-10-22T11:56:01.46 0.1 undecidable manual P 13 35.3424 95 -0.21 92
IV.FAGN.HHZ. 2023-10-22T11:56:01.23 0.3 undecidable manual P 130 30.9468 97 0.25 69
IV.RM33.HNZ. 2023-10-22T11:56:00.01 0.3 undecidable manual S 316 9.6792 133 -0.22 72
IV.LNSS.HHZ. 2023-10-22T11:56:00.32 0.1 undecidable manual P 310 27.2505 98 -0.1 95
IV.TERO.HHZ. 2023-10-22T11:56:00.92 0.3 undecidable manual P 52 31.8459 96 -0.2 69
IV.FIAM.HHZ. 2023-10-22T11:55:59.77 0.1 undecidable manual P 217 24.6531 100 -0.26 93
IV.GIGS.HHZ. 2023-10-22T11:55:59.63 0.1 undecidable manual P 88 22.6551 102 -0.09 96
MN.AQU.HNZ. 2023-10-22T11:55:58.39 0.3 undecidable manual P 139 13.5753 120 -0.02 74
IV.CAMP.HHZ. 2023-10-22T11:55:58.57 0.1 undecidable manual P 43 13.5753 120 0.17 96
IV.RM33.HNZ. 2023-10-22T11:55:57.95 0.1 undecidable manual P 316 9.6792 133 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:2.1 0.0013366805 0.2624 AML other m 2023-10-22T11:56:00.59
IV.RM33.HNN. ML:2.1 0.0013290679999999999 0.256 AML other m 2023-10-22T11:56:00.59
IV.RM33.HNE. ML:2.1 0.0012943176 0.2048 AML other m 2023-10-22T11:56:00.00
IV.RM33.EHE. ML:2.0 0.0012370933 0.1984 AML other m 2023-10-22T11:56:00.00
IV.CAMP.HHE. ML:1.7 0.0005315 0.3 AML other m 2023-10-22T11:56:01.39
IV.CAMP.HHN. ML:2.0 0.0009515 0.38 AML other m 2023-10-22T11:56:01.37
IV.GIGS.HHE. ML:1.6 0.0002665 0.2 AML other m 2023-10-22T11:56:03.77
IV.GIGS.HHN. ML:1.6 0.000258 0.22 AML other m 2023-10-22T11:56:03.78
IV.FIAM.HHE. ML:1.7 0.000262 0.28 AML other m 2023-10-22T11:56:04.60
IV.FIAM.HHN. ML:1.7 0.0002638044 0.1408 AML other m 2023-10-22T11:56:05.36
IV.LNSS.HHE. ML:1.8 0.00035552090000000005 0.1792 AML other m 2023-10-22T11:56:06.08
IV.TERO.HHE. ML:1.9 0.00032152015 0.0576 AML other m 2023-10-22T11:56:06.87
IV.TERO.HNE. ML:1.7 0.00019762525 0.2496 AML other m 2023-10-22T11:56:05.67
IV.LNSS.HHN. ML:1.9 0.00036802475000000004 0.4608 AML other m 2023-10-22T11:56:07.25
IV.TERO.HHN. ML:1.8 0.00030484745 0.1024 AML other m 2023-10-22T11:56:07.23
IV.TERO.HNN. ML:1.8 0.00030179984999999997 0.0896 AML other m 2023-10-22T11:56:06.79
IV.FAGN.HHN. ML:2.1 0.0005562316 0.2368 AML other m 2023-10-22T11:56:11.29
IV.FAGN.HHE. ML:2.2 0.000756 0.36 AML other m 2023-10-22T11:56:11.35
IV.GAVE.EHE. ML:1.9 0.00023549999999999998 0.22 AML other m 2023-10-22T11:56:12.39
IV.T0110.HHN. ML:2.1 0.0003456653 0.4032 AML other m 2023-10-22T11:56:12.02
IV.GAVE.EHN. ML:1.7 0.00015981790000000001 0.2432 AML other m 2023-10-22T11:56:11.75
IV.T0110.HHE. ML:2.0 0.0003 0.32 AML other m 2023-10-22T11:56:14.65
IV.CESI.HHN. ML:1.9 0.00012681780000000002 0.2176 AML other m 2023-10-22T11:56:17.62
IV.CERT.HHN. ML:1.4 0.000057127934999999995 0.3776 AML other m 2023-10-22T11:56:19.16
IV.CERT.HHE. ML:1.7 0.00010899999999999999 0.38 AML other m 2023-10-22T11:56:17.81
IV.CESI.HHE. ML:1.7 0.00008065175 0.384 AML other m 2023-10-22T11:56:17.92
IV.GUMA.HHE. ML:2.1 0.00023179340000000002 0.2432 AML other m 2023-10-22T11:56:18.30
IV.CSP1.EHE. ML:2.0 0.00016281089999999998 0.2368 AML other m 2023-10-22T11:56:18.88
IV.GUMA.HHN. ML:2.0 0.0001681172 0.2752 AML other m 2023-10-22T11:56:22.19
IV.MML1.EHE. ML:1.6 0.00005574999999999999 0.16 AML other m 2023-10-22T11:56:20.67
IV.CSP1.EHN. ML:2.0 0.000151739525 0.1984 AML other m 2023-10-22T11:56:18.61
IV.ASSB.HHE. ML:1.6 0.0000528 0.92 AML other m 2023-10-22T11:56:21.89
IV.MML1.EHN. ML:1.6 0.000058637604999999996 0.2944 AML other m 2023-10-22T11:56:22.19
IV.ASSB.HHN. ML:1.6 0.000056649999999999995 1.56 AML other m 2023-10-22T11:56:22.94
IV.FIAM.HNE. ML:1.6 0.00023863082 0.3008 AML other m 2023-10-22T11:56:04.60
IV.LNSS.HNE. ML:1.8 0.00036125195 0.1792 AML other m 2023-10-22T11:56:06.08
IV.MTRA.EHN. ML:2.3 0.00079319025 0.1216 AML other m 2023-10-22T11:56:06.64
IV.MTRA.HNE. ML:2.1 0.00044067465 0.1408 AML other m 2023-10-22T11:56:07.79
IV.MTRA.HNN. ML:2.3 0.0007860112500000001 0.1152 AML other m 2023-10-22T11:56:06.64
IV.GAVE.HNE. ML:2.0 0.00028431509999999997 0.3392 AML other m 2023-10-22T11:56:12.38
IV.MF5.EHE. ML:1.9 0.00014854971 0.16 AML other m 2023-10-22T11:56:16.48
IV.MF5.EHN. ML:1.8 0.00012676185000000002 0.1408 AML other m 2023-10-22T11:56:16.58
IV.CESI.HNN. ML:1.8 0.000106266545 0.2368 AML other m 2023-10-22T11:56:19.55
IV.MNTT.EHE. ML:2.0 0.00016973605 0.2624 AML other m 2023-10-22T11:56:22.41
IV.MNTT.EHN. ML:2.0 0.00014501413 0.32 AML other m 2023-10-22T11:56:21.00
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