Earthquake with magnitude of ML 1.5 on date 15-09-2023 and time 04:31:32 (UTC) in region 6 km N Massa d'Albe (AQ)

A magnitude ML 1.5 earthquake occured in region: 6 km N Massa d'Albe (AQ), on

  • 15-09-2023 04:31:32 (UTC)
  • 15-09-2023 06:31:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.1600, 13.3860 at 10 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
Massa d'Albe AQ 6 1476 1476
Magliano de' Marsi AQ 8 3690 5166
Scurcola Marsicana AQ 11 2824 7990
Ovindoli AQ 11 1227 9217
Rocca di Cambio AQ 12 533 9750
Rocca di Mezzo AQ 12 1526 11276
Borgorose RI 13 4591 15867
Tagliacozzo AQ 15 6889 22756
Avezzano AQ 15 42515 65271
Lucoli AQ 15 1011 66282
Ocre AQ 16 1167 67449
Celano AQ 16 11017 78466
Sante Marie AQ 16 1166 79632
Tornimparte AQ 16 3187 82819
Fossa AQ 17 721 83540
Villa Sant'Angelo AQ 18 424 83964
Sant'Eusanio Forconese AQ 18 394 84358
Fagnano Alto AQ 19 418 84776
Cappadocia AQ 19 528 85304
Aielli AQ 19 1475 86779
Castellafiume AQ 20 1106 87885
Fontecchio AQ 20 369 88254

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of L'Aquila (69753 inhabitants)
53 Km E of Tivoli (56533 inhabitants)
57 Km E of Guidonia Montecelio (88673 inhabitants)
62 Km SW of Teramo (54892 inhabitants)
68 Km W of Chieti (51815 inhabitants)
73 Km NE of Velletri (53303 inhabitants)
74 Km SW of Montesilvano (53738 inhabitants)
75 Km SE of Terni (111501 inhabitants)
76 Km W of Pescara (121014 inhabitants)
80 Km E of Roma (2864731 inhabitants)
87 Km NE of Latina (125985 inhabitants)
88 Km NE of Aprilia (73446 inhabitants)
91 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
Reviewed
Rev100
ML 1.5 2023-09-15
04:31:32
42.16 13.3858 10 2023-09-15
04:39:44
Sala Sismica INGV-Roma 121067831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-15 04:31:32 ± 0.09
Latitude 42.1600 ± 0.0054
Longitude 13.3858 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121067831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 576
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49013
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 121067831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-15 04:39:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2023-09-15T04:32:10.86 3.0 undecidable manual S -0.48 0
IV.RIBO.EHZ.01 2023-09-15T04:32:06.77 3.0 undecidable manual Pn 2.04 0
IV.SMA1.EHZ. 2023-09-15T04:31:42.85 0.3 undecidable manual P 355 52.3032 50 0.81 57
IV.TERO.HHZ. 2023-09-15T04:31:42.67 0.6 undecidable manual P 19 54.4011 50 0.32 45
IV.FIAM.HHZ. 2023-09-15T04:31:41.59 0.3 undecidable manual S 299 25.1526 111 -0.15 74
MN.AQU.HNZ. 2023-09-15T04:31:40.99 0.3 undecidable manual S 4 21.5673 114 0.38 71
IV.INTR.HHZ. 2023-09-15T04:31:40.76 0.3 undecidable manual P 111 45.7209 50 -0.26 69
IV.CERT.HHE. 2023-09-15T04:31:40.22 0.6 undecidable manual P 235 40.7259 50 -0.02 49
IV.FAGN.HHZ. 2023-09-15T04:31:40.13 0.3 undecidable manual S 54 20.0688 116 0 77
IV.RM33.EHZ. 2023-09-15T04:31:40.12 0.6 undecidable manual P 340 41.2254 50 -0.2 47
IV.VVLD.HHZ. 2023-09-15T04:31:39.58 0.3 undecidable manual P 149 37.629 50 -0.2 71
IV.T0110.HHZ. 2023-09-15T04:31:39.24 0.3 undecidable manual P 76 33.0447 50 0.18 72
IV.GIGS.HHE. 2023-09-15T04:31:39.16 0.6 undecidable manual P 25 35.9418 50 -0.35 46
IV.PTQR.HHZ. 2023-09-15T04:31:38.94 0.3 undecidable manual S 175 15.3735 123 0.23 74
IV.FIAM.HHZ. 2023-09-15T04:31:37.73 0.1 undecidable manual P 299 25.1526 111 -0.06 100
IV.FAGN.HHZ. 2023-09-15T04:31:36.66 0.1 positive manual P 54 20.0688 116 -0.2 98
MN.AQU.HNZ. 2023-09-15T04:31:36.64 0.3 undecidable manual P 4 21.5673 114 -0.5 69
IV.PTQR.HHZ. 2023-09-15T04:31:36.20 0.3 positive manual P 175 15.3735 123 0.16 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHN. ML:1.7 0.00046950000000000003 0.18 AML other m 2023-09-15T04:31:39.30
IV.PTQR.HHE. ML:1.8 0.0006000000000000001 0.64 AML other m 2023-09-15T04:31:39.37
IV.FIAM.HHN. ML:1.3 0.0001178316 0.3424 AML other m 2023-09-15T04:31:42.14
IV.T0110.HHN. ML:1.9 0.000324 0.32 AML other m 2023-09-15T04:31:45.59
IV.FIAM.HHE. ML:1.4 0.00014003375 0.24 AML other m 2023-09-15T04:31:42.62
IV.RM33.EHN. ML:1.1 0.00004489767 0.24 AML other m 2023-09-15T04:31:46.92
IV.RM33.EHE. ML:1.2 0.000054924139999999994 1.0624 AML other m 2023-09-15T04:31:46.57
IV.INTR.HHE. ML:1.4 0.00006356793 0.5408 AML other m 2023-09-15T04:31:47.58
IV.T0110.HHE. ML:1.6 0.00015714495 0.24 AML other m 2023-09-15T04:31:45.32
IV.INTR.HHN. ML:1.5 0.00008380963 0.2816 AML other m 2023-09-15T04:31:49.12
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