Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-04-2023 and time 09:08:23 (Italy) in region 3 km E Ripe San Ginesio (MC)

A magnitude ML 1.6 earthquake occured in region: 3 km E Ripe San Ginesio (MC), on

  • 09-04-2023 07:08:23 (UTC)
  • 09-04-2023 09:08:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1320, 13.4030 at 28 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Ripe San Ginesio MC 3 852 852
Sant'Angelo in Pontano MC 4 1436 2288
Loro Piceno MC 4 2401 4689
Colmurano MC 5 1263 5952
Montappone FM 6 1682 7634
Massa Fermana FM 6 963 8597
Falerone FM 6 3337 11934
Monte Vidon Corrado FM 7 731 12665
San Ginesio MC 7 3498 16163
Urbisaglia MC 8 2628 18791
Penna San Giovanni MC 9 1108 19899
Gualdo MC 9 815 20714
Mogliano MC 9 4696 25410
Servigliano FM 9 2336 27746
Montegiorgio FM 11 6851 34597
Camporotondo di Fiastrone MC 11 563 35160
Petriolo MC 11 1998 37158
Monte San Martino MC 12 765 37923
Cessapalombo MC 12 512 38435
Belmonte Piceno FM 12 646 39081
Tolentino MC 13 20069 59150
Francavilla d'Ete FM 13 964 60114
Sarnano MC 13 3264 63378
Belforte del Chienti MC 14 1886 65264
Monteleone di Fermo FM 14 395 65659
Monsampietro Morico FM 14 659 66318
Caldarola MC 14 1823 68141
Santa Vittoria in Matenano FM 15 1330 69471
Smerillo FM 15 365 69836
Magliano di Tenna FM 15 1452 71288
Corridonia MC 16 15430 86718
Rapagnano FM 16 2145 88863
Pollenza MC 16 6618 95481
Monte San Pietrangeli FM 16 2458 97939
Grottazzolina FM 16 3398 101337
Montelparo FM 17 778 102115
Montefalcone Appennino FM 17 424 102539
Montottone FM 17 979 103518
Amandola FM 17 3629 107147
Torre San Patrizio FM 18 2048 109195
Serrapetrona MC 18 966 110161
Monte Rinaldo FM 19 379 110540
Monte Giberto FM 19 801 111341
Comunanza AP 19 3166 114507
Macerata MC 19 42473 156980
Monte San Giusto MC 19 8191 165171
Ortezzano FM 20 774 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)
60 Km E of Foligno (57155 inhabitants)
82 Km E of Perugia (166134 inhabitants)
85 Km SE of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
88 Km NE of Terni (111501 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.6 2023-04-09
07:08:23		 43.132 13.4033 28 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116485211
Reviewed
Rev100 		ML 1.5 2023-04-09
07:08:24		 43.131 13.3913 28 2023-04-09
07:17:32		 Sala Sismica INGV-Roma 116197501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-09 07:08:23 ± 0.12
Latitude 43.1320 ± 0.0045
Longitude 13.4033 ± 0.0062
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116485211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 518
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44247
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 116485211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-18 10:18:43

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 116197501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-09 07:17:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.HHZ. 2023-04-09T07:08:57.86 3.0 undecidable manual S -0.26 0
IV.PIEI.HHZ. 2023-04-09T07:08:38.80 3.0 negative manual P 0.53 0
IV.NARO.HHZ. 2023-04-09T07:08:38.81 3.0 undecidable manual P 0.29 0
IV.NRCA.HHZ. 2023-04-09T07:08:38.81 0.3 undecidable manual S 215 40.5261 119 0.33 69
IV.EL6.EHZ. 2023-04-09T07:08:37.03 0.6 undecidable manual S 312 32.745 125 0.31 46
IV.MML1.EHZ. 2023-04-09T07:08:37.71 0.6 undecidable manual S 267 35.0427 123 0.5 45
IV.CING.HHZ. 2023-04-09T07:08:36.63 0.1 undecidable manual S 328 31.8459 126 0.12 96
7F.SIB1.EHZ. 2023-04-09T07:08:36.07 0.3 undecidable manual S 202 28.4493 130 0.26 71
IV.MMO1.EHZ. 2023-04-09T07:08:35.32 0.3 undecidable manual S 194 26.5512 132 -0.1 72
7F.SIB2.EHZ. 2023-04-09T07:08:35.62 0.3 undecidable manual S 197 27.9498 130 -0.08 72
IV.FDMO.HHZ. 2023-04-09T07:08:35.72 0.3 undecidable manual S 248 27.75 131 0.07 74
IV.MNTT.EHZ. 2023-04-09T07:08:34.41 0.3 undecidable manual S 116 17.3715 145 0.62 63
IV.PF6.EHZ. 2023-04-09T07:08:33.42 0.3 undecidable manual S 272 16.9719 146 -0.3 71
IV.CSP1.EHZ. 2023-04-09T07:08:33.71 0.3 undecidable manual S 255 16.6722 146 0.03 75
IV.AOI.HHE. 2023-04-09T07:08:33.62 0.3 undecidable manual P 19 49.1175 114 0.09 69
IV.MF5.EHZ. 2023-04-09T07:08:33.81 0.3 undecidable manual S 164 16.6722 146 0.14 73
IV.NRCA.HHZ. 2023-04-09T07:08:32.39 0.3 undecidable manual P 215 40.5261 119 0.04 72
IV.MNTP.HNZ. 2023-04-09T07:08:32.36 0.3 undecidable manual S 84 5.3946 168 -0.13 76
IV.SAP2.EHZ. 2023-04-09T07:08:32.23 0.3 undecidable manual S 185 3.8961 171 -0.19 75
IV.GUMA.HHZ. 2023-04-09T07:08:32.76 0.3 undecidable manual S 216 9.4794 159 -0.03 76
IV.MML1.EHZ. 2023-04-09T07:08:31.70 0.1 undecidable manual P 267 35.0427 123 0.08 97
IV.CING.HHZ. 2023-04-09T07:08:31.15 0.1 undecidable manual P 328 31.8459 126 -0.07 98
IV.EL6.EHZ. 2023-04-09T07:08:31.44 0.3 undecidable manual P 312 32.745 125 0.1 72
IV.FDMO.HHZ. 2023-04-09T07:08:30.68 0.3 undecidable manual P 248 27.75 131 -0.04 73
7F.SIB1.EHZ. 2023-04-09T07:08:30.76 0.1 undecidable manual P 202 28.4493 130 -0.05 98
IV.MMO1.EHZ. 2023-04-09T07:08:30.35 0.3 undecidable manual P 194 26.5512 132 -0.23 71
7F.SIB2.EHZ. 2023-04-09T07:08:30.51 0.3 undecidable manual P 197 27.9498 130 -0.23 71
IV.MF5.EHZ. 2023-04-09T07:08:29.60 0.1 undecidable manual P 164 16.6722 146 0.02 100
IV.MNTT.EHZ. 2023-04-09T07:08:29.72 0.1 undecidable manual P 116 17.3715 145 0.08 98
IV.PF6.EHZ. 2023-04-09T07:08:29.41 0.1 undecidable manual P 272 16.9719 146 -0.19 97
IV.CSP1.EHZ. 2023-04-09T07:08:29.57 0.3 undecidable manual P 255 16.6722 146 -0.01 75
IV.SAP2.EHZ. 2023-04-09T07:08:28.66 0.3 undecidable manual P 185 3.8961 171 -0.19 75
IV.GUMA.HHZ. 2023-04-09T07:08:28.96 0.3 undecidable manual P 216 9.4794 159 -0.11 75
IV.MNTP.HNZ. 2023-04-09T07:08:28.59 0.1 undecidable manual P 84 5.3946 168 -0.3 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:1.9 0.00039249999999999995 0.28 AML other m 2023-04-09T07:08:32.98
IV.GUMA.HHN. ML:2.0 0.0004965 1.76 AML other m 2023-04-09T07:08:33.90
IV.CSP1.EHE. ML:1.9 0.0003325 0.18 AML other m 2023-04-09T07:08:33.84
IV.CSP1.EHN. ML:2.0 0.00044750000000000004 0.42 AML other m 2023-04-09T07:08:33.99
IV.MNTT.EHE. ML:1.6 0.0001953155 0.24 AML other m 2023-04-09T07:08:34.54
IV.MNTT.EHN. ML:1.7 0.00022712838 0.3616 AML other m 2023-04-09T07:08:34.68
IV.MMO1.EHE. ML:1.3 0.0000765 0.6 AML other m 2023-04-09T07:08:35.49
IV.MMO1.EHN. ML:1.5 0.0001235 0.3 AML other m 2023-04-09T07:08:36.21
IV.CING.HHN. ML:1.3 0.000060246165 0.1216 AML other m 2023-04-09T07:08:36.83
IV.CING.HHE. ML:1.0 0.000030034003 0 AML other m 2023-04-09T07:08:36.91
IV.EL6.EHE. ML:1.2 0.00004983641 0.24 AML other m 2023-04-09T07:08:37.68
IV.MML1.EHN. ML:1.4 0.00007955000000000001 0.16 AML other m 2023-04-09T07:08:38.10
IV.MML1.EHE. ML:1.2 0.00005605 0.18 AML other m 2023-04-09T07:08:38.20
IV.NRCA.HHN. ML:1.8 0.00016149999999999997 0.12 AML other m 2023-04-09T07:08:39.07
IV.NRCA.HHE. ML:1.7 0.0001365 0.14 AML other m 2023-04-09T07:08:39.07
IV.GUMA.HNN. ML:1.8 0.0003663168 0.128 AML other m 2023-04-09T07:08:32.88
IV.GUMA.HNE. ML:1.8 0.00031934605 0.1408 AML other m 2023-04-09T07:08:32.89
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