Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 04-12-2023 and time 14:54:19 (Italy) in region 1 km W Massa Fermana (FM)

A magnitude ML 1.6 earthquake occured in region: 1 km W Massa Fermana (FM), on

  • 04-12-2023 13:54:19 (UTC)
  • 04-12-2023 14:54:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1560, 13.4630 at 24 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
Massa Fermana FM 1 963 963
Montappone FM 2 1682 2645
Mogliano MC 4 4696 7341
Loro Piceno MC 4 2401 9742
Monte Vidon Corrado FM 4 731 10473
Falerone FM 5 3337 13810
Montegiorgio FM 7 6851 20661
Petriolo MC 7 1998 22659
Francavilla d'Ete FM 7 964 23623
Ripe San Ginesio MC 8 852 24475
Sant'Angelo in Pontano MC 8 1436 25911
Urbisaglia MC 8 2628 28539
Colmurano MC 9 1263 29802
Servigliano FM 9 2336 32138
Belmonte Piceno FM 9 646 32784
Magliano di Tenna FM 10 1452 34236
Monte San Pietrangeli FM 10 2458 36694
Rapagnano FM 11 2145 38839
Corridonia MC 11 15430 54269
Penna San Giovanni MC 11 1108 55377
Torre San Patrizio FM 12 2048 57425
Grottazzolina FM 12 3398 60823
Monsampietro Morico FM 12 659 61482
San Ginesio MC 13 3498 64980
Monteleone di Fermo FM 13 395 65375
Monte San Giusto MC 14 8191 73566
Monte San Martino MC 14 765 74331
Gualdo MC 14 815 75146
Montottone FM 14 979 76125
Santa Vittoria in Matenano FM 15 1330 77455
Monte Giberto FM 15 801 78256
Pollenza MC 16 6618 84874
Tolentino MC 16 20069 104943
Macerata MC 16 42473 147416
Camporotondo di Fiastrone MC 16 563 147979
Montegranaro FM 16 12990 160969
Montelparo FM 16 778 161747
Smerillo FM 17 365 162112
Ponzano di Fermo FM 17 1674 163786
Monte Rinaldo FM 17 379 164165
Cessapalombo MC 17 512 164677
Monte Urano FM 18 8353 173030
Monte Vidon Combatte FM 18 433 173463
Ortezzano FM 18 774 174237
Belforte del Chienti MC 18 1886 176123
Petritoli FM 19 2335 178458
Montefalcone Appennino FM 19 424 178882
Sarnano MC 19 3264 182146
Caldarola MC 19 1823 183969
Sant'Elpidio a Mare FM 20 17110 201079

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km S of Ancona (100861 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
66 Km E of Foligno (57155 inhabitants)
84 Km SE of Fano (60888 inhabitants)
87 Km E of Perugia (166134 inhabitants)
90 Km N of L'Aquila (69753 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
94 Km NE of Terni (111501 inhabitants)
95 Km SE of Pesaro (94582 inhabitants)
98 Km NW of Pescara (121014 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 1.6 2023-12-04
13:54:19		 43.1565 13.4632 24 2023-12-04
14:03:42		 Sala Sismica INGV-Roma 123806931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-04 13:54:19 ± 0.27
Latitude 43.1565 ± 0.0081
Longitude 13.4632 ± 0.0148
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123806931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1130
Semi-minor axis of confidence ellipse (meter) 444
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.54319
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 123806931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-04 14:03:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-12-04T13:54:35.28 0.1 undecidable manual S 218 45.621 111 0.43 86
IV.EL6.EHE. 2023-12-04T13:54:32.56 0.3 undecidable manual S 303 34.9428 118 0.31 69
IV.CING.HNE. 2023-12-04T13:54:31.55 0.6 undecidable manual S 318 32.5452 120 -0.13 47
IV.TERO.HHZ. 2023-12-04T13:54:30.03 0.1 undecidable manual P 169 60.2952 105 -0.5 84
IV.CSP1.EHZ. 2023-12-04T13:54:29.39 0.6 undecidable manual S 251 22.1556 132 -0.03 50
IV.AOI.HHE. 2023-12-04T13:54:29.60 1.0 undecidable manual P 14 45.1215 111 1.3 16
IV.MF5.EHZ. 2023-12-04T13:54:28.95 1.0 undecidable manual S 181 18.6702 137 0.17 24
IV.NRCA.HHZ. 2023-12-04T13:54:28.32 0.1 undecidable manual P 218 45.621 111 -0.07 95
IV.GUMA.HHZ. 2023-12-04T13:54:28.12 0.6 undecidable manual S 225 14.6742 145 0.02 50
IV.MML1.EHZ. 2023-12-04T13:54:27.63 3.0 positive manual P -0.73 0
IV.SAP2.EHE. 2023-12-04T13:54:26.91 0.6 undecidable manual S 218 8.3805 158 -0.4 47
IV.EL6.EHE. 2023-12-04T13:54:26.89 0.3 undecidable manual P 303 34.9428 118 0.01 72
IV.FDMO.HHZ. 2023-12-04T13:54:26.57 3.0 positive manual P 0.33 0
IV.CING.HNE. 2023-12-04T13:54:26.51 0.3 undecidable manual P 318 32.5452 120 -0.04 72
IV.CSP1.EHZ. 2023-12-04T13:54:25.11 0.3 undecidable manual P 251 22.1556 132 -0.14 72
IV.MNTT.EHZ. 2023-12-04T13:54:25.50 0.1 undecidable manual P 134 14.9739 144 0.98 75
IV.GUMA.HHZ. 2023-12-04T13:54:24.40 0.1 undecidable manual P 225 14.6742 145 -0.09 99
IV.MF5.EHZ. 2023-12-04T13:54:24.88 0.1 undecidable manual P 181 18.6702 137 0 100
IV.MNTP.HNE. 2023-12-04T13:54:23.41 0.1 undecidable manual P 167 2.1978 174 -0.39 94
IV.SAP2.EHE. 2023-12-04T13:54:23.78 0.3 undecidable manual P 218 8.3805 158 -0.25 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHE. ML:1.8 0.000311 0.2 AML other m 2023-12-04T13:54:29.73
IV.MNTT.EHN. ML:1.9 0.0004765 0.3 AML other m 2023-12-04T13:54:30.84
IV.FDMO.HHE. ML:1.6 0.000156 0.56 AML other m 2023-12-04T13:54:32.49
IV.FDMO.HHN. ML:1.6 0.00013450000000000002 0.78 AML other m 2023-12-04T13:54:32.53
IV.MML1.EHE. ML:1.3 0.000060700000000000005 0.1 AML other m 2023-12-04T13:54:50.18
IV.MML1.EHN. ML:1.5 0.00008629999999999998 0.18 AML other m 2023-12-04T13:54:50.28
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