Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 12-02-2024 and time 17:23:48 (UTC) in region 6 km NW Posta (RI)

A magnitude ML 1.0 earthquake occured in region: 6 km NW Posta (RI), on

  • 12-02-2024 17:23:48 (UTC)
  • 12-02-2024 18:23:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5550, 13.0400 at 16 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
Posta RI 6 694 694
Leonessa RI 6 2435 3129
Borbona RI 9 617 3746
Micigliano RI 12 127 3873
Cittareale RI 12 482 4355
Monteleone di Spoleto PG 13 599 4954
Poggio Bustone RI 14 2055 7009
Cantalice RI 15 2755 9764
Rivodutri RI 16 1253 11017
Antrodoco RI 16 2588 13605
Polino TR 16 233 13838
Borgo Velino RI 17 972 14810
Morro Reatino RI 17 373 15183
Montereale AQ 17 2581 17764
Castel Sant'Angelo RI 18 1308 19072
Cascia PG 18 3217 22289
Cagnano Amiterno AQ 19 1369 23658
Poggiodomo PG 20 117 23775
Labro RI 20 374 24149
Cittaducale RI 20 6828 30977

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
37 Km NW of L'Aquila (69753 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
56 Km W of Teramo (54892 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km N of Tivoli (56533 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
95 Km W of Chieti (51815 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km N 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 2024-02-12
17:23:48		 42.5553 13.0398 16 2024-02-12
17:41:15		 Sala Sismica INGV-Roma 125241701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-12 17:23:48 ± 0.1
Latitude 42.5553 ± 0.0045
Longitude 13.0398 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125241701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
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) 167
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 125241701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-12 17:41:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HNZ. 2024-02-12T17:23:59.12 0.6 undecidable manual S 11 31.4463 105 -0.13 48
IV.SMA1.EHZ. 2024-02-12T17:23:57.84 0.6 undecidable manual S 71 25.5522 110 0.09 48
IV.GAVE.EHE. 2024-02-12T17:23:56.33 0.6 undecidable manual S 322 19.2696 119 0.1 49
IV.ARRO.EHZ. 2024-02-12T17:23:56.71 0.6 undecidable manual S 277 22.5552 114 -0.3 47
IV.RM33.EHZ. 2024-02-12T17:23:55.19 0.6 undecidable manual S 110 15.1737 128 -0.13 49
IV.NRCA.HNZ. 2024-02-12T17:23:54.41 0.1 undecidable manual P 11 31.4463 105 -0.17 95
IV.SMA1.EHZ. 2024-02-12T17:23:53.81 0.1 undecidable manual P 71 25.5522 110 0.09 97
IV.LNSS.HHZ. 2024-02-12T17:23:53.84 0.6 undecidable manual S 0 5.2947 159 0.13 50
IV.ARRO.EHZ. 2024-02-12T17:23:53.35 0.1 undecidable manual P 277 22.5552 114 0.06 99
IV.GAVE.EHE. 2024-02-12T17:23:52.90 0.1 undecidable manual P 322 19.2696 119 0.06 99
IV.RM33.EHZ. 2024-02-12T17:23:52.31 0.1 positive manual P 110 15.1737 128 -0.01 100
IV.LNSS.HHZ. 2024-02-12T17:23:51.48 1.0 undecidable manual P 0 5.2947 159 0.09 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.4 0.000228 0.12 AML other m 2024-02-12T17:23:53.92
IV.LNSS.HHN. ML:1.2 0.00016949999999999997 1.58 AML other m 2024-02-12T17:23:54.02
IV.RM33.EHE. ML:0.9 0.00006420173 0.2176 AML other m 2024-02-12T17:23:56.06
IV.RM33.EHN. ML:1.1 0.000089199585 0.2304 AML other m 2024-02-12T17:23:55.46
IV.ARRO.EHE. ML:0.7 0.000027605295 0.2176 AML other m 2024-02-12T17:23:57.35
IV.ARRO.EHN. ML:0.6 0.000024193884000000002 0.128 AML other m 2024-02-12T17:23:58.09
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