Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 04-12-2023 and time 14:49:44 (UTC) in region 2 km NE Massa Fermana (FM)

A magnitude ML 1.5 earthquake occured in region: 2 km NE Massa Fermana (FM), on

  • 04-12-2023 14:49:44 (UTC)
  • 04-12-2023 15:49:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1680, 13.4900 at 23 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 2 963 963
Mogliano MC 2 4696 5659
Montappone FM 4 1682 7341
Francavilla d'Ete FM 5 964 8305
Monte Vidon Corrado FM 5 731 9036
Montegiorgio FM 6 6851 15887
Loro Piceno MC 6 2401 18288
Petriolo MC 6 1998 20286
Falerone FM 7 3337 23623
Monte San Pietrangeli FM 8 2458 26081
Rapagnano FM 9 2145 28226
Magliano di Tenna FM 9 1452 29678
Corridonia MC 9 15430 45108
Belmonte Piceno FM 9 646 45754
Servigliano FM 10 2336 48090
Urbisaglia MC 10 2628 50718
Torre San Patrizio FM 10 2048 52766
Ripe San Ginesio MC 10 852 53618
Sant'Angelo in Pontano MC 11 1436 55054
Colmurano MC 11 1263 56317
Grottazzolina FM 11 3398 59715
Monte San Giusto MC 12 8191 67906
Monsampietro Morico FM 12 659 68565
Penna San Giovanni MC 13 1108 69673
Monteleone di Fermo FM 14 395 70068
Montegranaro FM 14 12990 83058
Montottone FM 14 979 84037
Monte Giberto FM 14 801 84838
Macerata MC 15 42473 127311
Monte Urano FM 15 8353 135664
San Ginesio MC 15 3498 139162
Ponzano di Fermo FM 16 1674 140836
Monte San Martino MC 16 765 141601
Pollenza MC 16 6618 148219
Santa Vittoria in Matenano FM 16 1330 149549
Gualdo MC 17 815 150364
Montelparo FM 17 778 151142
Tolentino MC 17 20069 171211
Monte Rinaldo FM 17 379 171590
Sant'Elpidio a Mare FM 17 17110 188700
Monte Vidon Combatte FM 17 433 189133
Petritoli FM 18 2335 191468
Ortezzano FM 18 774 192242
Morrovalle MC 18 10195 202437
Smerillo FM 18 365 202802
Camporotondo di Fiastrone MC 19 563 203365
Fermo FM 19 37655 241020
Cessapalombo MC 20 512 241532

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km S of Ancona (100861 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
68 Km E of Foligno (57155 inhabitants)
84 Km SE of Fano (60888 inhabitants)
90 Km E of Perugia (166134 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
91 Km N of L'Aquila (69753 inhabitants)
95 Km SE of Pesaro (94582 inhabitants)
96 Km NE of Terni (111501 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 1.5 2023-12-04
14:49:44		 43.1682 13.4898 23 2023-12-04
15:02:40		 Sala Sismica INGV-Roma 123808101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-04 14:49:44 ± 0.15
Latitude 43.1682 ± 0.0045
Longitude 13.4898 ± 0.0074
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123808101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 644
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38221
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 123808101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-04 15:02:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2023-12-04T14:50:22.53 3.0 undecidable manual Sn -0.13 0
IV.PTRJ.HHZ. 2023-12-04T14:50:19.28 3.0 undecidable manual Pg 4.39 0
IV.MML1.EHZ. 2023-12-04T14:49:58.96 0.6 undecidable manual S 262 42.4242 111 0.3 45
IV.RM33.EHZ. 2023-12-04T14:49:57.64 3.0 negative manual P 0.48 0
IV.CING.HHZ. 2023-12-04T14:49:56.48 0.6 undecidable manual S 314 33.0447 117 0.09 48
IV.MMO1.EHZ. 2023-12-04T14:49:56.18 0.6 undecidable manual S 204 32.6451 118 -0.1 48
IV.FDMO.HHZ. 2023-12-04T14:49:56.99 0.6 undecidable manual S 246 35.742 115 -0.04 48
IV.CSP1.EHZ. 2023-12-04T14:49:54.37 0.3 undecidable manual S 250 24.5532 126 -0.09 73
IV.TERO.HHZ. 2023-12-04T14:49:54.98 3.0 undecidable manual P -0.46 0
IV.MF5.EHZ. 2023-12-04T14:49:53.90 0.3 undecidable manual S 187 20.1687 133 0.35 70
IV.GUMA.HHZ. 2023-12-04T14:49:53.01 0.6 undecidable manual S 227 17.1717 138 0.03 50
IV.MML1.EHZ. 2023-12-04T14:49:52.48 0.3 undecidable manual P 262 42.4242 111 -0.11 71
IV.MNTP.HNZ. 2023-12-04T14:49:51.27 0.3 undecidable manual S 206 3.7962 169 -0.1 75
IV.FDMO.HHZ. 2023-12-04T14:49:51.44 0.3 undecidable manual P 246 35.742 115 -0.21 70
IV.CING.HHZ. 2023-12-04T14:49:51.48 0.1 positive manual P 314 33.0447 117 0.2 93
IV.MMO1.EHZ. 2023-12-04T14:49:51.04 0.6 undecidable manual P 204 32.6451 118 -0.18 47
IV.CSP1.EHZ. 2023-12-04T14:49:50.02 0.1 positive manual P 250 24.5532 126 -0.15 97
IV.GUMA.HHZ. 2023-12-04T14:49:49.28 0.1 positive manual P 227 17.1717 138 -0.04 100
IV.MF5.EHZ. 2023-12-04T14:49:49.81 0.1 negative manual P 187 20.1687 133 0.17 97
IV.MNTP.HNZ. 2023-12-04T14:49:48.29 0.3 undecidable manual P 206 3.7962 169 -0.09 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:1.8 0.0003135 0.22 AML other m 2023-12-04T14:49:53.06
IV.GUMA.HHN. ML:1.5 0.00017999999999999998 0.12 AML other m 2023-12-04T14:49:53.17
IV.MF5.EHE. ML:1.6 0.00021799999999999999 0.14 AML other m 2023-12-04T14:49:54.01
IV.MF5.EHN. ML:1.7 0.000266 0.3 AML other m 2023-12-04T14:49:54.02
IV.CSP1.EHE. ML:1.4 0.00011205 0.74 AML other m 2023-12-04T14:49:55.27
IV.MMO1.EHE. ML:1.4 0.0001004 0.12 AML other m 2023-12-04T14:49:56.36
IV.CSP1.EHN. ML:1.4 0.0001175 0.92 AML other m 2023-12-04T14:49:56.62
IV.CING.HHN. ML:1.0 0.000038400000000000005 0.12 AML other m 2023-12-04T14:49:56.82
IV.MMO1.EHN. ML:1.7 0.00019700000000000002 1.14 AML other m 2023-12-04T14:49:56.33
IV.FDMO.HHE. ML:1.4 0.00008804999999999999 0.64 AML other m 2023-12-04T14:49:57.44
IV.CING.HHE. ML:1.2 0.0000572 0.62 AML other m 2023-12-04T14:49:57.15
IV.FDMO.HHN. ML:1.4 0.00007625 0.12 AML other m 2023-12-04T14:49:57.46
IV.MML1.EHN. ML:1.4 0.00007400000000000001 0.34 AML other m 2023-12-04T14:49:59.72
IV.MML1.EHE. ML:1.2 0.000049250000000000004 0.14 AML other m 2023-12-04T14:49:59.60
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