Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 20-01-2024 and time 11:23:48 (Italy) in region 4 km NE Sant'Angelo in Pontano (MC)

A magnitude ML 1.8 earthquake occured in region: 4 km NE Sant'Angelo in Pontano (MC), on

  • 20-01-2024 10:23:48 (UTC)
  • 20-01-2024 11:23:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1300, 13.4100 at 22 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
Sant'Angelo in Pontano MC 4 1436 1436
Ripe San Ginesio MC 4 852 2288
Loro Piceno MC 4 2401 4689
Montappone FM 5 1682 6371
Falerone FM 6 3337 9708
Massa Fermana FM 6 963 10671
Colmurano MC 6 1263 11934
Monte Vidon Corrado FM 6 731 12665
San Ginesio MC 8 3498 16163
Urbisaglia MC 8 2628 18791
Penna San Giovanni MC 8 1108 19899
Mogliano MC 9 4696 24595
Servigliano FM 9 2336 26931
Gualdo MC 9 815 27746
Montegiorgio FM 10 6851 34597
Petriolo MC 11 1998 36595
Monte San Martino MC 11 765 37360
Belmonte Piceno FM 11 646 38006
Camporotondo di Fiastrone MC 12 563 38569
Cessapalombo MC 13 512 39081
Francavilla d'Ete FM 13 964 40045
Monteleone di Fermo FM 13 395 40440
Tolentino MC 14 20069 60509
Monsampietro Morico FM 14 659 61168
Sarnano MC 14 3264 64432
Santa Vittoria in Matenano FM 14 1330 65762
Smerillo FM 14 365 66127
Magliano di Tenna FM 14 1452 67579
Belforte del Chienti MC 15 1886 69465
Caldarola MC 15 1823 71288
Rapagnano FM 15 2145 73433
Monte San Pietrangeli FM 15 2458 75891
Corridonia MC 16 15430 91321
Grottazzolina FM 16 3398 94719
Montottone FM 16 979 95698
Montelparo FM 16 778 96476
Pollenza MC 16 6618 103094
Montefalcone Appennino FM 16 424 103518
Amandola FM 17 3629 107147
Torre San Patrizio FM 17 2048 109195
Monte Rinaldo FM 18 379 109574
Monte Giberto FM 19 801 110375
Serrapetrona MC 19 966 111341
Monte San Giusto MC 19 8191 119532
Comunanza AP 19 3166 122698
Macerata MC 19 42473 165171
Ortezzano FM 19 774 165945
Force AP 20 1354 167299

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km S of Ancona (100861 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
61 Km E of Foligno (57155 inhabitants)
83 Km E of Perugia (166134 inhabitants)
85 Km SE of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
89 Km NE of Terni (111501 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
96 Km SE of Pesaro (94582 inhabitants)
99 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 1.8 2024-01-20
10:23:48		 43.1303 13.4105 22 2024-01-20
10:33:21		 Sala Sismica INGV-Roma 124760891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-20 10:23:48 ± 0.16
Latitude 43.1303 ± 0.0045
Longitude 13.4105 ± 0.0074
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124760891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 596
Semi-minor axis of confidence ellipse (meter) 393
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 124760891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-20 10:33:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2024-01-20T10:24:02.17 0.6 undecidable manual S 216 40.7259 110 0.12 46
IV.MML1.EHZ. 2024-01-20T10:24:01.34 0.6 undecidable manual S 267 35.5422 113 0.58 42
IV.CING.HHZ. 2024-01-20T10:24:00.36 0.3 undecidable manual S 328 32.2455 116 0.4 66
IV.MMO1.EHZ. 2024-01-20T10:23:58.54 0.6 undecidable manual S 195 26.5512 122 -0.08 48
IV.FDMO.HHZ. 2024-01-20T10:23:58.91 0.6 undecidable manual S 248 28.1496 120 -0.09 47
7F.SIB2.EHE. 2024-01-20T10:23:58.82 0.6 undecidable manual S 198 27.9498 120 -0.12 47
IV.SMA1.EHZ. 2024-01-20T10:23:57.66 0.6 undecidable manual P 186 55.7997 104 -0.76 37
IV.CSP1.EHE. 2024-01-20T10:23:56.71 0.6 undecidable manual S 256 17.1717 136 0.04 49
IV.NRCA.HHZ. 2024-01-20T10:23:56.27 0.6 undecidable manual P 216 40.7259 110 0.07 46
IV.PF6.EHE. 2024-01-20T10:23:56.52 0.6 undecidable manual S 273 17.4714 135 -0.22 47
IV.MF5.EHZ. 2024-01-20T10:23:56.93 0.1 undecidable manual S 166 16.2726 138 0.42 90
IV.CESI.HHZ. 2024-01-20T10:23:56.92 0.6 undecidable manual P 251 43.3233 109 0.35 44
IV.CING.HHZ. 2024-01-20T10:23:55.00 0.3 undecidable manual P 328 32.2455 116 0.01 71
IV.GUMA.HHZ. 2024-01-20T10:23:55.58 0.6 undecidable manual S 219 9.6792 153 0.08 49
IV.MNTP.HNZ. 2024-01-20T10:23:54.63 0.6 undecidable manual S 81 4.7952 166 -0.41 46
7F.SIB2.EHE. 2024-01-20T10:23:54.13 0.1 undecidable manual P 198 27.9498 120 -0.27 91
IV.SAP2.EHZ. 2024-01-20T10:23:54.63 0.6 undecidable manual S 194 3.8961 169 -0.35 47
IV.MMO1.EHZ. 2024-01-20T10:23:54.25 0.3 positive manual P 195 26.5512 122 0.04 72
7F.SIB1.EHE. 2024-01-20T10:23:54.65 0.6 undecidable manual P 204 28.5492 120 0.17 46
IV.FDMO.HHZ. 2024-01-20T10:23:54.48 0.3 positive manual P 248 28.1496 120 0.05 72
IV.MML1.EHZ. 2024-01-20T10:23:54.80 0.6 negative manual P 267 35.5422 113 -0.65 40
IV.CSP1.EHE. 2024-01-20T10:23:53.03 0.1 undecidable manual P 256 17.1717 136 -0.06 97
IV.MF5.EHZ. 2024-01-20T10:23:53.22 0.1 undecidable manual P 166 16.2726 138 0.22 94
IV.GUMA.HHZ. 2024-01-20T10:23:52.52 0.1 positive manual P 219 9.6792 153 0.11 97
IV.MNTP.HNZ. 2024-01-20T10:23:52.14 0.1 undecidable manual P 81 4.7952 166 -0.01 100
IV.SAP2.EHZ. 2024-01-20T10:23:52.13 0.1 undecidable manual P 194 3.8961 169 0.01 100
IV.PF6.EHE. 2024-01-20T10:23:52.87 0.1 undecidable manual P 273 17.4714 135 -0.26 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SAP2.EHE. ML:2.0 0.0007605 0.26 AML other m 2024-01-20T10:23:55.49
IV.GUMA.HHE. ML:2.2 0.001007 0.24 AML other m 2024-01-20T10:23:55.78
IV.SAP2.EHN. ML:2.5 0.0026 0.56 AML other m 2024-01-20T10:23:55.80
IV.GUMA.HHN. ML:2.1 0.000865 0.22 AML other m 2024-01-20T10:23:55.83
IV.MF5.EHN. ML:2.0 0.000574 0.24 AML other m 2024-01-20T10:23:57.24
IV.MF5.EHE. ML:1.9 0.000512 0.2 AML other m 2024-01-20T10:23:57.21
IV.FDMO.HHN. ML:1.5 0.00012735 1.22 AML other m 2024-01-20T10:23:59.00
IV.FDMO.HHE. ML:1.6 0.000179 1.88 AML other m 2024-01-20T10:24:00.01
IV.CING.HHE. ML:1.6 0.00016399999999999997 1.54 AML other m 2024-01-20T10:24:00.97
IV.MML1.EHE. ML:1.7 0.0001736 0.46 AML other m 2024-01-20T10:24:02.64
IV.MML1.EHN. ML:1.7 0.000179 0.6 AML other m 2024-01-20T10:24:02.48
IV.NRCA.HHN. ML:1.7 0.000158 1.52 AML other m 2024-01-20T10:24:03.10
IV.CING.HHN. ML:1.6 0.0001385 0.46 AML other m 2024-01-20T10:24:03.28
IV.NRCA.HHE. ML:1.8 0.00016849999999999998 1.02 AML other m 2024-01-20T10:24:03.75
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