Earthquake with magnitude of ML 1.5 on date 09-04-2023 and time 09:30:31 (Italy) in region 3 km S Loro Piceno (MC)

A magnitude ML 1.5 earthquake occured in region: 3 km S Loro Piceno (MC), on

  • 09-04-2023 07:30:31 (UTC)
  • 09-04-2023 09:30:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1370, 13.4280 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Loro Piceno MC 3 2401 2401
Montappone FM 4 1682 4083
Massa Fermana FM 4 963 5046
Sant'Angelo in Pontano MC 5 1436 6482
Ripe San Ginesio MC 5 852 7334
Falerone FM 5 3337 10671
Monte Vidon Corrado FM 5 731 11402
Colmurano MC 7 1263 12665
Mogliano MC 7 4696 17361
Urbisaglia MC 8 2628 19989
Servigliano FM 8 2336 22325
Penna San Giovanni MC 9 1108 23433
Montegiorgio FM 9 6851 30284
San Ginesio MC 10 3498 33782
Petriolo MC 10 1998 35780
Belmonte Piceno FM 10 646 36426
Gualdo MC 11 815 37241
Francavilla d'Ete FM 11 964 38205
Monte San Martino MC 12 765 38970
Magliano di Tenna FM 13 1452 40422
Monteleone di Fermo FM 13 395 40817
Monsampietro Morico FM 13 659 41476
Camporotondo di Fiastrone MC 13 563 42039
Rapagnano FM 14 2145 44184
Monte San Pietrangeli FM 14 2458 46642
Cessapalombo MC 14 512 47154
Tolentino MC 14 20069 67223
Santa Vittoria in Matenano FM 14 1330 68553
Corridonia MC 14 15430 83983
Grottazzolina FM 14 3398 87381
Smerillo FM 15 365 87746
Sarnano MC 15 3264 91010
Montottone FM 15 979 91989
Belforte del Chienti MC 16 1886 93875
Torre San Patrizio FM 16 2048 95923
Montelparo FM 16 778 96701
Pollenza MC 16 6618 103319
Caldarola MC 16 1823 105142
Montefalcone Appennino FM 17 424 105566
Monte Rinaldo FM 17 379 105945
Monte Giberto FM 17 801 106746
Monte San Giusto MC 18 8191 114937
Amandola FM 18 3629 118566
Macerata MC 18 42473 161039
Ortezzano FM 19 774 161813
Ponzano di Fermo FM 19 1674 163487
Monte Vidon Combatte FM 19 433 163920
Serrapetrona MC 20 966 164886
Montegranaro FM 20 12990 177876
Comunanza AP 20 3166 181042
Force AP 20 1354 182396

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km S of Ancona (100861 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
62 Km E of Foligno (57155 inhabitants)
84 Km E of Perugia (166134 inhabitants)
85 Km SE of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
90 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
Bulletin
Rev1000
ML 1.5 2023-04-09
07:30:31
43.1372 13.4277 28 2024-03-01
17:18:04
Bollettino Sismico Italiano INGV 116512411
Reviewed
Rev100
ML 1.5 2023-04-09
07:30:31
43.14 13.4297 28 2023-04-09
07:36:19
Sala Sismica INGV-Roma 116198401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-09 07:30:31 ± 0.14
Latitude 43.1372 ± 0.0054
Longitude 13.4277 ± 0.0074
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 116512411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 215
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) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.38041
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 116512411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-21 00:09:10

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 28
Type of magnitude ML
Reference to an origin 116198401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-09 07:36:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-04-09T07:30:46.66 0.6 undecidable manual S 217 42.2244 118 0.45 43
IV.MML1.EHZ. 2023-04-09T07:30:45.28 0.6 undecidable manual S 266 37.0296 122 0.27 45
IV.EL6.EHZ. 2023-04-09T07:30:44.54 0.6 undecidable manual S 309 33.8439 125 0.22 45
IV.CING.HHZ. 2023-04-09T07:30:44.02 0.6 undecidable manual S 325 32.4453 126 0.03 47
IV.FDMO.HHZ. 2023-04-09T07:30:43.58 0.6 undecidable manual S 248 29.748 129 0.16 47
IV.MMO1.EHZ. 2023-04-09T07:30:42.92 0.6 undecidable manual S 197 27.6501 131 -0.07 47
IV.MF5.EHZ. 2023-04-09T07:30:41.36 0.6 undecidable manual S 171 16.7721 146 0.3 46
IV.CSP1.EHZ. 2023-04-09T07:30:41.02 0.6 undecidable manual S 255 18.7701 143 -0.34 45
IV.PF6.EHE. 2023-04-09T07:30:40.94 0.6 undecidable manual S 270 18.87 143 -0.45 44
IV.GUMA.HHZ. 2023-04-09T07:30:40.29 0.6 undecidable manual S 222 11.1777 156 -0.04 49
IV.MML1.EHZ. 2023-04-09T07:30:39.27 0.3 negative manual P 266 37.0296 122 0.05 70
IV.MNTP.HNZ. 2023-04-09T07:30:39.97 0.6 undecidable manual S 90 3.3966 172 0.2 48
IV.EL6.EHZ. 2023-04-09T07:30:39.27 1.0 positive manual P 309 33.8439 125 0.46 22
IV.NRCA.HHZ. 2023-04-09T07:30:39.86 0.1 negative manual P 217 42.2244 118 -0.05 93
IV.CING.HHZ. 2023-04-09T07:30:38.68 0.3 undecidable manual P 325 32.4453 126 0.05 70
IV.MF5.EHZ. 2023-04-09T07:30:37.08 0.1 negative manual P 171 16.7721 146 0.14 95
IV.MMO1.EHZ. 2023-04-09T07:30:37.81 1.0 undecidable manual P 197 27.6501 131 -0.24 23
IV.FDMO.HHZ. 2023-04-09T07:30:37.88 0.6 positive manual P 248 29.748 129 -0.42 44
IV.PF6.EHE. 2023-04-09T07:30:36.90 0.3 undecidable manual P 270 18.87 143 -0.22 70
IV.CSP1.EHZ. 2023-04-09T07:30:36.96 0.1 undecidable manual P 255 18.7701 143 -0.15 95
IV.GUMA.HHZ. 2023-04-09T07:30:36.45 0.1 negative manual P 222 11.1777 156 -0.07 98
IV.MNTP.HNZ. 2023-04-09T07:30:36.14 0.1 undecidable manual P 90 3.3966 172 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HNE. ML:1.7 0.00023785565 0.1472 AML other m 2023-04-09T07:30:40.37
IV.GUMA.HHE. ML:1.7 0.00025179085 0.1792 AML other m 2023-04-09T07:30:40.32
IV.GUMA.HNN. ML:1.7 0.00027173055 0.1408 AML other m 2023-04-09T07:30:40.36
IV.GUMA.HHN. ML:1.8 0.000345 0.24 AML other m 2023-04-09T07:30:40.38
IV.CSP1.EHE. ML:1.6 0.00019312615 0.1984 AML other m 2023-04-09T07:30:41.32
IV.CSP1.EHN. ML:1.8 0.0002475166 0.1216 AML other m 2023-04-09T07:30:41.48
IV.MF5.EHN. ML:1.4 0.00012263175 0.256 AML other m 2023-04-09T07:30:41.48
IV.MF5.EHE. ML:1.6 0.00018687215 0.2624 AML other m 2023-04-09T07:30:41.54
IV.MMO1.EHE. ML:1.0 0.00004159311 0.224 AML other m 2023-04-09T07:30:43.35
IV.MMO1.EHN. ML:1.2 0.00005590029 0.1792 AML other m 2023-04-09T07:30:43.53
IV.FDMO.HHN. ML:1.2 0.000049037280000000004 0.2432 AML other m 2023-04-09T07:30:43.56
IV.FDMO.HHE. ML:1.3 0.00006974999999999999 0.12 AML other m 2023-04-09T07:30:43.56
IV.CING.HHN. ML:1.1 0.00004641799 0.1216 AML other m 2023-04-09T07:30:44.32
IV.NRCA.HNE. ML:1.8 0.0001502172 1.0016 AML other m 2023-04-09T07:30:44.52
IV.MML1.EHN. ML:1.2 0.000047979355 0.16 AML other m 2023-04-09T07:30:45.59
IV.MML1.EHE. ML:1.1 0.000035793155 0.1792 AML other m 2023-04-09T07:30:45.69
IV.NRCA.HHN. ML:1.5 0.00007764999999999999 0.12 AML other m 2023-04-09T07:30:46.54
IV.NRCA.HHE. ML:1.4 0.00006825 0.14 AML other m 2023-04-09T07:30:46.55
IV.MML1.HNN. ML:1.6 0.000111042435 0.8 AML other m 2023-04-09T07:30:47.66
IV.NRCA.HNN. ML:1.9 0.00020705384999999998 0.8448 AML other m 2023-04-09T07:30:48.95
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