Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 27-02-2023 and time 18:06:43 (UTC) in region 1 km E Poggio Bustone (RI)

A magnitude ML 1.3 earthquake occured in region: 1 km E Poggio Bustone (RI), on

  • 27-02-2023 18:06:43 (UTC)
  • 27-02-2023 19:06:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5030, 12.9030 at 9 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.

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
Poggio Bustone RI 1 2055 2055
Cantalice RI 4 2755 4810
Rivodutri RI 4 1253 6063
Morro Reatino RI 6 373 6436
Leonessa RI 8 2435 8871
Labro RI 9 374 9245
Colli sul Velino RI 10 533 9778
Polino TR 10 233 10011
Rieti RI 11 47698 57709
Greccio RI 12 1558 59267
Cittaducale RI 13 6828 66095
Micigliano RI 14 127 66222
Arrone TR 14 2763 68985
Contigliano RI 15 3783 72768
Montefranco TR 15 1276 74044
Castel Sant'Angelo RI 16 1308 75352
Ferentillo TR 16 1913 77265
Posta RI 16 694 77959
Borgo Velino RI 17 972 78931
Monteleone di Spoleto PG 17 599 79530
Antrodoco RI 17 2588 82118
Borbona RI 19 617 82735
Stroncone TR 20 4917 87652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Terni (111501 inhabitants)
44 Km W of L'Aquila (69753 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
58 Km N of Guidonia Montecelio (88673 inhabitants)
61 Km N of Tivoli (56533 inhabitants)
66 Km E of Viterbo (67173 inhabitants)
68 Km W of Teramo (54892 inhabitants)
76 Km NE of Roma (2864731 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
91 Km N of Velletri (53303 inhabitants)
98 Km NE of Fiumicino (78395 inhabitants)
98 Km NE of Pomezia (62966 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
18:06:43		 42.5028 12.903 9 2024-03-01
17:18:17		 Bollettino Sismico Italiano INGV 122853371
Reviewed
Rev100 		ML 1.3 2023-02-27
18:06:43		 42.5087 12.9053 8 2023-02-27
18:13:35		 Sala Sismica INGV-Roma 114860771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-27 18:06:43 ± 0.16
Latitude 42.5028 ± 0.0090
Longitude 12.9030 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122853371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1057
Semi-minor axis of confidence ellipse (meter) 352
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.12680
Epicentral distance of station farthest from the epicenter (degree) 0.55038
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 114860771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-27 18:13:35

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 122853371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-06 14:31:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-02-27T18:07:02.71 0.6 undecidable manual S 14 61.0944 50 0.04 46
IV.MC2.EHZ. 2023-02-27T18:07:00.84 0.6 undecidable manual S 27 51.0156 50 0.87 36
IV.MOMA.HHZ. 2023-02-27T18:06:58.93 0.6 undecidable manual S 321 43.0236 50 1.07 34
IV.NRCA.HHZ. 2023-02-27T18:06:57.09 0.6 undecidable manual S 25 40.5261 50 -0.1 47
IV.FDMO.HHZ. 2023-02-27T18:06:54.29 0.3 undecidable manual P 14 61.0944 50 -0.27 65
7F.SIB2.EHE. 2023-02-27T18:06:53.16 0.3 undecidable manual P 37 54.1014 50 -0.32 66
7F.SIB1.EHE. 2023-02-27T18:06:53.17 0.1 undecidable manual P 34 52.8027 50 -0.11 92
IV.RM33.EHZ. 2023-02-27T18:06:53.26 0.6 undecidable manual S 88 25.4523 110 0.39 45
IV.MC2.EHZ. 2023-02-27T18:06:53.08 0.3 undecidable manual P 27 51.0156 50 0.08 69
IV.CESX.HHE. 2023-02-27T18:06:53.95 0.6 undecidable manual S 295 28.3494 108 0.13 48
7F.SIB3.EHN. 2023-02-27T18:06:52.74 0.3 undecidable manual P 36 51.0156 50 -0.27 67
IV.NRCA.HHZ. 2023-02-27T18:06:51.05 0.1 undecidable manual P 25 40.5261 50 -0.34 89
IV.GAVE.EHN. 2023-02-27T18:06:51.10 0.6 undecidable manual S 358 21.0678 113 -0.33 46
IV.MOMA.HHZ. 2023-02-27T18:06:51.78 0.3 undecidable manual P 321 43.0236 50 0 71
IV.SMA1.EHN. 2023-02-27T18:06:51.05 0.3 undecidable manual P 68 38.0286 50 0.04 72
IV.ARRO.EHZ. 2023-02-27T18:06:49.45 0.6 undecidable manual S 307 14.0748 123 0.16 49
IV.RM33.EHZ. 2023-02-27T18:06:49.06 0.3 undecidable manual P 88 25.4523 110 0.16 71
IV.LNSS.HHZ. 2023-02-27T18:06:49.70 0.6 undecidable manual S 45 15.7731 120 -0.1 49
IV.CESX.HHE. 2023-02-27T18:06:49.15 0.3 undecidable manual P 295 28.3494 108 -0.3 69
IV.GAVE.EHN. 2023-02-27T18:06:48.12 0.3 undecidable manual P 358 21.0678 113 0.05 74
IV.LNSS.HHZ. 2023-02-27T18:06:47.32 0.1 undecidable manual P 45 15.7731 120 0.19 96
IV.ARRO.EHZ. 2023-02-27T18:06:46.85 0.1 undecidable manual P 307 14.0748 123 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.3 0.0002009243 0.3328 AML other m 2023-02-27T18:06:49.85
IV.ARRO.EHN. ML:1.4 0.000285 0.2 AML other m 2023-02-27T18:06:49.86
IV.LNSS.HHE. ML:1.4 0.000232 1.12 AML other m 2023-02-27T18:06:51.95
IV.LNSS.HHN. ML:1.4 0.000234 0.22 AML other m 2023-02-27T18:06:53.23
IV.RM33.EHN. ML:1.1 0.00008195 0.46 AML other m 2023-02-27T18:06:56.47
IV.RM33.EHE. ML:1.2 0.00008664999999999999 1.42 AML other m 2023-02-27T18:06:57.15
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