Earthquake with magnitude of ML 0.3 on date 04-02-2024 and time 08:15:26 (UTC) in region 4 km NW Posta (RI)

A magnitude ML 0.3 earthquake occured in region: 4 km NW Posta (RI), on

  • 04-02-2024 08:15:26 (UTC)
  • 04-02-2024 09:15:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5480, 13.0530 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.

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 5 694 694
Leonessa RI 7 2435 3129
Borbona RI 8 617 3746
Micigliano RI 11 127 3873
Cittareale RI 12 482 4355
Monteleone di Spoleto PG 14 599 4954
Poggio Bustone RI 15 2055 7009
Antrodoco RI 15 2588 9597
Cantalice RI 15 2755 12352
Borgo Velino RI 16 972 13324
Montereale AQ 16 2581 15905
Rivodutri RI 17 1253 17158
Castel Sant'Angelo RI 17 1308 18466
Cagnano Amiterno AQ 17 1369 19835
Polino TR 18 233 20068
Morro Reatino RI 18 373 20441
Cascia PG 19 3217 23658
Cittaducale RI 20 6828 30486

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Terni (111501 inhabitants)
36 Km NW of L'Aquila (69753 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
55 Km W of Teramo (54892 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
79 Km E of Viterbo (67173 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km W of Chieti (51815 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 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 0.3 2024-02-04
08:15:26
42.5482 13.0533 11 2024-02-04
09:08:35
Sala Sismica INGV-Roma 125024961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-04 08:15:26 ± 0.12
Latitude 42.5482 ± 0.0072
Longitude 13.0533 ± 0.0085
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 125024961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 923
Semi-minor axis of confidence ellipse (meter) 518
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38131
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 125024961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-04 09:08:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BSSO.HHZ. 2024-02-04T08:15:37.60 3.0 undecidable manual P -0.02 0
IV.NRCA.HHZ. 2024-02-04T08:15:36.87 0.6 undecidable manual S 9 32.0457 50 -0.32 60
IV.SMA1.EHN. 2024-02-04T08:15:35.53 0.6 undecidable manual S 68 24.753 50 0.28 61
IV.MC2.EHE. 2024-02-04T08:15:34.06 1.0 undecidable manual P 15 41.8248 50 0.05 31
7F.SIB1.EHE. 2024-02-04T08:15:34.22 0.3 undecidable manual P 25 42.3243 50 0.13 92
IV.NRCA.HHZ. 2024-02-04T08:15:32.32 0.3 undecidable manual P 9 32.0457 50 -0.19 92
IV.SMA1.EHN. 2024-02-04T08:15:31.48 0.3 undecidable manual P 68 24.753 50 0.09 96
IV.RM33.EHZ. 2024-02-04T08:15:31.99 0.6 undecidable manual S 108 13.875 128 -0.25 63
IV.ARRO.EHE. 2024-02-04T08:15:31.22 0.6 undecidable manual P 278 23.754 50 -0.02 65
IV.LNSS.HHZ. 2024-02-04T08:15:30.48 0.3 undecidable manual S 350 6.1938 150 0.03 100
IV.RM33.EHZ. 2024-02-04T08:15:29.60 0.3 undecidable manual P 108 13.875 128 -0.05 98
IV.LNSS.HHZ. 2024-02-04T08:15:28.81 0.3 undecidable manual P 350 6.1938 150 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.3 0.00001956422 0.2944 AML other m 2024-02-04T08:15:32.44
IV.RM33.EHN. ML:0.0 0.0000112672625 0.2368 AML other m 2024-02-04T08:15:32.15
IV.NRCA.HHE. ML:0.5 0.000013490109499999999 1.76 AML other m 2024-02-04T08:15:37.62
IV.NRCA.HHN. ML:0.4 0.000011037505 2.0352 AML other m 2024-02-04T08:15:37.49
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