Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-01-2023 and time 18:46:45 (Italy) in region 5 km E Pizzoli (AQ)

A magnitude ML 1.0 earthquake occured in region: 5 km E Pizzoli (AQ), on

  • 28-01-2023 17:46:45 (UTC)
  • 28-01-2023 18:46:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4540, 13.3500 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.

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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 5 4326 4326
Barete AQ 6 737 5063
Capitignano AQ 9 665 5728
Cagnano Amiterno AQ 10 1369 7097
Montereale AQ 12 2581 9678
Campotosto AQ 12 542 10220
Scoppito AQ 12 3727 13947
L'Aquila AQ 12 69753 83700
Crognaleto TE 15 1297 84997
Lucoli AQ 18 1011 86008
Tornimparte AQ 18 3187 89195
Pietracamela TE 19 271 89466
Fano Adriano TE 19 296 89762
Borbona RI 19 617 90379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of L'Aquila (69753 inhabitants)
37 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
71 Km W of Pescara (121014 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km SE of Foligno (57155 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
97 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 1.0 2023-01-28
17:46:45		 42.4537 13.3505 11 2023-01-28
18:04:34		 Sala Sismica INGV-Roma 113861531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 17:46:45 ± 0.07
Latitude 42.4537 ± 0.0054
Longitude 13.3505 ± 0.0061
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113861531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 530
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 113861531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 18:04:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2023-01-28T17:46:55.76 0.3 undecidable manual S 303 0.2725 90 0.01 72
IV.MC2.EHZ. 2023-01-28T17:46:55.28 0.3 undecidable manual P 346 0.4730 90 0.56 63
IV.TERO.HHZ. 2023-01-28T17:46:54.67 0.1 undecidable manual S 48 0.2518 90 -0.46 90
IV.VCEL.EHZ. 2023-01-28T17:46:53.17 0.1 undecidable manual P 99 0.3660 90 0.27 91
IV.SMA1.EHZ. 2023-01-28T17:46:53.34 0.3 undecidable manual S 356 0.1772 90 0.42 69
IV.NRCA.HHZ. 2023-01-28T17:46:53.57 0.1 undecidable manual P 335 0.4173 90 -0.21 90
IV.T0110.HHZ. 2023-01-28T17:46:53.26 0.1 undecidable manual P 125 0.3858 90 0.02 95
IV.GIGS.HHZ. 2023-01-28T17:46:52.00 0.3 undecidable manual S 90 0.1637 90 -0.53 68
IV.LNSS.HHZ. 2023-01-28T17:46:51.13 0.3 undecidable manual P 303 0.2725 90 -0.17 70
MN.AQU.HNZ. 2023-01-28T17:46:51.01 0.3 undecidable manual S 158 0.1070 108 0.15 74
IV.FAGN.HHZ. 2023-01-28T17:46:51.43 0.1 undecidable manual P 137 0.2545 90 0.44 90
IV.CAMP.HHZ. 2023-01-28T17:46:50.50 0.3 undecidable manual S 28 0.0926 118 0.04 75
IV.FIAM.HNN. 2023-01-28T17:46:50.94 0.1 undecidable manual P 223 0.2536 90 -0.02 96
IV.RM33.EHZ. 2023-01-28T17:46:50.96 0.1 undecidable manual S 299 0.1142 102 -0.1 97
IV.TERO.HHZ. 2023-01-28T17:46:50.59 0.1 undecidable manual P 48 0.2518 90 -0.35 92
IV.GIGS.HHZ. 2023-01-28T17:46:49.24 0.1 undecidable manual P 90 0.1637 90 -0.2 96
IV.SMA1.EHZ. 2023-01-28T17:46:49.74 0.3 undecidable manual P 356 0.1772 90 0.08 74
IV.RM33.EHZ. 2023-01-28T17:46:48.62 0.1 undecidable manual P 299 0.1142 102 0.03 100
MN.AQU.HNZ. 2023-01-28T17:46:48.41 0.3 undecidable manual P 158 0.1070 108 -0.07 74
IV.CAMP.HHZ. 2023-01-28T17:46:48.33 0.1 undecidable manual P 28 0.0926 118 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.2 0.000152747895 0.1664 AML other m 2023-01-28T17:46:51.30
IV.RM33.EHN. ML:1.2 0.000144893765 0.1024 AML other m 2023-01-28T17:46:51.19
IV.GIGS.HHN. ML:0.8 0.0000538 0.2 AML other m 2023-01-28T17:46:52.71
IV.GIGS.HHE. ML:0.6 0.000035594914999999995 0.1024 AML other m 2023-01-28T17:46:52.68
IV.FAGN.HHE. ML:0.0 0.00011019506500000001 0.384 AML other m 2023-01-28T17:46:59.87
IV.FAGN.HHN. ML:0.0 0.00009239854 0.32 AML other m 2023-01-28T17:46:59.87
IV.CAMP.HHE. ML:0.5 0.000037032415 0.2816 AML other m 2023-01-28T17:46:51.34
IV.CAMP.HHN. ML:0.6 0.00004722084 0.4352 AML other m 2023-01-28T17:46:50.87
IV.RM33.HNE. ML:1.3 0.000196311985 0.256 AML other m 2023-01-28T17:46:51.29
IV.RM33.HNN. ML:1.2 0.000144379395 0.128 AML other m 2023-01-28T17:46:51.17
IV.SMA1.EHE. ML:1.1 0.000085407205 0.2048 AML other m 2023-01-28T17:46:53.95
IV.SMA1.EHN. ML:0.7 0.000038524965 0.4992 AML other m 2023-01-28T17:46:56.23
IV.TERO.HHE. ML:0.7 0.000023108259999999998 0.064 AML other m 2023-01-28T17:46:55.96
IV.TERO.HHN. ML:0.8 0.000031029615 0.064 AML other m 2023-01-28T17:46:55.99
IV.LNSS.HHE. ML:1.1 0.000054433059999999996 0.1792 AML other m 2023-01-28T17:46:56.79
IV.LNSS.HHN. ML:1.0 0.00004455112 0.1664 AML other m 2023-01-28T17:46:56.46
IV.NRCA.HHE. ML:1.2 0.00004219547 0.1408 AML other m 2023-01-28T17:47:00.29
IV.NRCA.HHN. ML:0.8 0.00002117399 0.128 AML other m 2023-01-28T17:47:01.80
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