Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-12-2023 and time 16:05:27 (UTC) in region 3 km E Pizzoli (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km E Pizzoli (AQ), on

  • 21-12-2023 16:05:27 (UTC)
  • 21-12-2023 17:05:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4450, 13.3250 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 3 4326 4326
Barete AQ 4 737 5063
Cagnano Amiterno AQ 8 1369 6432
Capitignano AQ 9 665 7097
Scoppito AQ 10 3727 10824
Montereale AQ 11 2581 13405
L'Aquila AQ 12 69753 83158
Campotosto AQ 13 542 83700
Lucoli AQ 17 1011 84711
Tornimparte AQ 17 3187 87898
Crognaleto TE 17 1297 89195
Borbona RI 18 617 89812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
76 Km SE of Foligno (57155 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
96 Km NE of Velletri (53303 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 1.4 2023-12-21
16:05:27		 42.4447 13.3252 11 2023-12-21
16:13:11		 Sala Sismica INGV-Roma 124178741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-21 16:05:27 ± 0.06
Latitude 42.4447 ± 0.0036
Longitude 13.3252 ± 0.0049
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 124178741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 484
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55218
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 18
Type of magnitude ML
Reference to an origin 124178741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-21 16:13:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HNZ. 2023-12-21T16:06:09.58 3.0 undecidable manual S 0.09 0
IV.PAOL.HHZ. 2023-12-21T16:06:01.67 3.0 undecidable manual Pg 4.13 0
IV.SFI.EHZ. 2023-12-21T16:05:58.92 3.0 undecidable manual Pn 0.59 0
IV.FDMO.HHZ. 2023-12-21T16:05:48.82 3.0 undecidable manual S -0.12 0
IV.MML1.EHZ. 2023-12-21T16:05:40.00 3.0 undecidable manual P -1.57 0
IV.CSP1.EHZ. 2023-12-21T16:05:39.51 3.0 negative manual P -0.85 0
IV.MF5.EHZ. 2023-12-21T16:05:38.45 1.0 positive manual P 10 61.2942 90 0.08 24
IV.LNSS.HHZ. 2023-12-21T16:05:37.92 0.3 undecidable manual S 307 29.1486 90 0.17 76
IV.T0110.HHZ. 2023-12-21T16:05:36.65 3.0 negative manual P -0.16 0
IV.MMO1.EHZ. 2023-12-21T16:05:36.74 0.6 undecidable manual P 0 50.4162 90 0.03 50
IV.GIGS.HHZ. 2023-12-21T16:05:35.11 0.3 undecidable manual S 87 20.2686 90 -0.28 76
IV.SMA1.EHZ. 2023-12-21T16:05:35.71 0.3 undecidable manual S 2 20.6682 90 0.23 75
IV.NRCA.HHZ. 2023-12-21T16:05:35.89 0.6 undecidable manual P 338 46.4202 90 -0.2 49
IV.LNSS.HHZ. 2023-12-21T16:05:33.22 0.1 negative manual P 307 29.1486 90 -0.21 100
IV.FIAM.HHZ. 2023-12-21T16:05:33.24 0.6 undecidable manual P 221 25.9518 90 0.31 50
IV.TERO.HHZ. 2023-12-21T16:05:33.43 0.6 undecidable manual P 49 30.1476 90 -0.15 51
MN.AQU.HHZ. 2023-12-21T16:05:33.39 0.3 undecidable manual S 147 11.9769 108 0.21 77
IV.CAMP.HHZ. 2023-12-21T16:05:33.35 0.3 undecidable manual S 34 12.1767 106 0.11 78
IV.FAGN.HHZ. 2023-12-21T16:05:33.53 0.6 undecidable manual P 133 29.0487 90 0.13 51
IV.GIGS.HHZ. 2023-12-21T16:05:32.02 0.6 undecidable manual P 87 20.2686 90 -0.04 53
IV.RM33.EHZ. 2023-12-21T16:05:32.83 0.3 undecidable manual S 308 11.5773 111 -0.24 77
IV.SMA1.EHZ. 2023-12-21T16:05:32.20 1.0 negative manual P 2 20.6682 90 0.09 26
IV.CAMP.HHZ. 2023-12-21T16:05:31.07 0.6 negative manual P 34 12.1767 106 0.25 51
IV.RM33.EHZ. 2023-12-21T16:05:30.70 1.0 undecidable manual P 308 11.5773 111 -0.02 27
MN.AQU.HHZ. 2023-12-21T16:05:30.47 0.6 undecidable manual P 147 11.9769 108 -0.31 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.5 0.0003617894 0.1152 AML other m 2023-12-21T16:05:32.90
IV.RM33.EHE. ML:1.4 0.0002602876 0.1152 AML other m 2023-12-21T16:05:33.79
IV.LNSS.HHE. ML:1.3 0.00010570000000000001 1.9 AML other m 2023-12-21T16:05:38.98
IV.LNSS.HHN. ML:1.4 0.00011877153999999999 0.2176 AML other m 2023-12-21T16:05:38.56
IV.TERO.HHE. ML:0.0 0.00009149410499999999 0.1408 AML other m 2023-12-21T16:05:38.18
IV.TERO.HHN. ML:0.0 0.00008627715 0.0768 AML other m 2023-12-21T16:05:39.59
IV.FAGN.HHN. ML:0.0 0.00022502909999999997 0.3584 AML other m 2023-12-21T16:05:41.70
IV.FAGN.HHE. ML:0.0 0.0002075 0.32 AML other m 2023-12-21T16:05:42.24
IV.T0110.HHN. ML:1.4 0.00008129522 0.3456 AML other m 2023-12-21T16:05:47.32
IV.T0110.HHE. ML:1.5 0.00009615000000000002 0.32 AML other m 2023-12-21T16:05:47.16
IV.RM33.HNE. ML:1.4 0.0002617193 0.128 AML other m 2023-12-21T16:05:33.79
IV.RM33.HNN. ML:1.5 0.00036425905000000004 0.0896 AML other m 2023-12-21T16:05:33.22
IV.LNSS.HNE. ML:1.4 0.00012765035 0.32 AML other m 2023-12-21T16:05:37.97
IV.LNSS.HNN. ML:1.5 0.00014194619999999999 1.5104 AML other m 2023-12-21T16:05:37.91
IV.TERO.HNE. ML:1.3 0.00009052104 0.2816 AML other m 2023-12-21T16:05:38.48
IV.TERO.HNN. ML:1.3 0.00010202284 0.1536 AML other m 2023-12-21T16:05:38.02
IV.NRCA.HHE. ML:0.0 0.00019267780000000001 0.0768 AML other m 2023-12-21T16:05:43.22
IV.NRCA.HHN. ML:0.0 0.0001523675 0.1152 AML other m 2023-12-21T16:05:42.51
IV.MF5.EHE. ML:1.4 0.00004438415 0.96 AML other m 2023-12-21T16:05:39.46
IV.MF5.EHN. ML:1.3 0.00004193196 0.5248 AML other m 2023-12-21T16:05:51.04
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