Earthquake with magnitude of ML 1.3 on date 27-02-2023 and time 23:37:04 (UTC) in region 4 km SW Pizzoli (AQ)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Pizzoli (AQ), on

  • 27-02-2023 23:37:04 (UTC)
  • 28-02-2023 00:37:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4180, 13.2520 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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 4 4326 4326
Barete AQ 5 737 5063
Cagnano Amiterno AQ 5 1369 6432
Scoppito AQ 5 3727 10159
Montereale AQ 12 2581 12740
Capitignano AQ 12 665 13405
Antrodoco RI 14 2588 15993
L'Aquila AQ 14 69753 85746
Borbona RI 14 617 86363
Tornimparte AQ 15 3187 89550
Lucoli AQ 16 1011 90561
Borgo Velino RI 16 972 91533
Micigliano RI 17 127 91660
Posta RI 17 694 92354
Castel Sant'Angelo RI 18 1308 93662
Campotosto AQ 18 542 94204
Fiamignano RI 20 1413 95617

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
76 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
86 Km NE of Roma (2864731 inhabitants)
90 Km NE of Velletri (53303 inhabitants)
94 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
Bulletin
Rev1000
ML 1.3 2023-02-27
23:37:04
42.4183 13.2523 11 2024-03-01
17:18:17
Bollettino Sismico Italiano INGV 122854961
Reviewed
Rev100
ML 1.4 2023-02-27
23:37:04
42.4158 13.2503 11 2023-02-27
23:41:25
Sala Sismica INGV-Roma 114869071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-27 23:37:04 ± 0.08
Latitude 42.4183 ± 0.0036
Longitude 13.2523 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122854961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 354
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49463
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 122854961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-06 15:06:07

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 114869071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-27 23:41:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIGN.HHZ. 2023-02-27T23:37:27.33 3.0 negative manual P -1.77 0
IV.MMO1.EHZ. 2023-02-27T23:37:21.31 0.6 undecidable manual S 6 53.7018 50 0.19 45
IV.MC2.EHZ. 2023-02-27T23:37:21.99 0.6 undecidable manual S 355 54.9006 50 0.54 41
IV.NRCA.HHZ. 2023-02-27T23:37:19.52 0.6 undecidable manual S 346 47.4192 50 0.08 46
IV.TERO.HHZ. 2023-02-27T23:37:16.07 0.6 undecidable manual S 52 36.6411 50 -0.49 43
IV.MC2.EHZ. 2023-02-27T23:37:14.08 0.6 undecidable manual P 355 54.9006 50 -0.12 46
IV.SMA1.EHZ. 2023-02-27T23:37:13.63 0.6 undecidable manual S 16 24.4533 50 0.31 46
IV.LNSS.HHZ. 2023-02-27T23:37:13.95 0.6 undecidable manual S 320 26.8509 50 0.01 48
IV.GIGS.HHZ. 2023-02-27T23:37:13.66 0.6 undecidable manual S 82 26.5512 50 -0.21 46
IV.MMO1.EHZ. 2023-02-27T23:37:13.88 0.1 undecidable manual P 6 53.7018 50 -0.13 91
IV.NRCA.HHZ. 2023-02-27T23:37:12.85 0.1 undecidable manual P 346 47.4192 50 -0.19 92
IV.FIAM.HHZ. 2023-02-27T23:37:11.85 0.6 undecidable manual S 214 20.0688 50 -0.28 48
IV.FAGN.HHZ. 2023-02-27T23:37:11.05 0.3 undecidable manual P 122 32.0457 50 0.38 68
IV.CAMP.HHZ. 2023-02-27T23:37:11.55 0.6 undecidable manual S 45 18.2706 50 -0.12 48
IV.TERO.HHZ. 2023-02-27T23:37:11.09 0.3 undecidable manual P 52 36.6411 50 -0.28 68
MN.AQU.HNZ. 2023-02-27T23:37:10.94 0.6 undecidable manual S 120 14.3745 127 0.37 48
IV.RM33.EHZ. 2023-02-27T23:37:09.38 0.6 undecidable manual S 343 10.4784 136 -0.17 49
IV.SMA1.EHZ. 2023-02-27T23:37:09.51 0.1 undecidable manual P 16 24.4533 50 0 99
IV.LNSS.HHZ. 2023-02-27T23:37:09.83 0.3 undecidable manual P 320 26.8509 50 -0.04 74
IV.GIGS.HHZ. 2023-02-27T23:37:09.74 0.1 undecidable manual P 82 26.5512 50 -0.08 96
IV.CAMP.HHZ. 2023-02-27T23:37:08.67 0.1 negative manual P 45 18.2706 50 0.12 98
IV.FIAM.HHZ. 2023-02-27T23:37:08.85 0.1 undecidable manual P 214 20.0688 50 0.03 98
MN.AQU.HNZ. 2023-02-27T23:37:08.01 0.1 undecidable manual P 120 14.3745 127 0.09 100
IV.RM33.EHZ. 2023-02-27T23:37:07.50 0.1 negative manual P 343 10.4784 136 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.2 0.0001885 0.88 AML other m 2023-02-27T23:37:10.45
IV.RM33.EHN. ML:1.2 0.000187 1.04 AML other m 2023-02-27T23:37:10.07
IV.SMA1.EHN. ML:1.4 0.0001625 0.46 AML other m 2023-02-27T23:37:13.74
IV.SMA1.EHE. ML:1.5 0.000201 0.28 AML other m 2023-02-27T23:37:14.32
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