Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-07-2023 and time 23:23:10 (UTC) in region 4 km S Rimini (RN)

A magnitude ML 1.5 earthquake occured in region: 4 km S Rimini (RN), on

  • 17-07-2023 23:23:10 (UTC)
  • 18-07-2023 01:23:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0280, 12.5730 at 10 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
Rimini RN 4 147750 147750
Riccione RN 7 34965 182715
Coriano RN 7 10502 193217
Santarcangelo di Romagna RN 11 22089 215306
Misano Adriatico RN 11 13014 228320
San Clemente RN 11 5577 233897
Montescudo - Monte Colombo RN 12 6779 240676
Verucchio RN 13 10078 250754
Gemmano RN 14 1158 251912
Morciano di Romagna RN 14 7045 258957
San Giovanni in Marignano RN 15 9417 268374
San Mauro Pascoli FC 15 11690 280064
Cattolica RN 16 17125 297189
Montefiore Conca RN 16 2269 299458
Savignano sul Rubicone FC 16 17766 317224
Poggio Torriana RN 16 5135 322359
Sassofeltrio PU 16 1388 323747
Bellaria-Igea Marina RN 16 19519 343266
Gabicce Mare PU 16 5781 349047
Borghi FC 17 2843 351890
Gatteo FC 18 9068 360958
Mercatino Conca PU 19 1086 362044
Gradara PU 19 4835 366879
Saludecio RN 19 3120 369999
Monte Grimano Terme PU 20 1136 371135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km S of Rimini (147750 inhabitants)
29 Km E of Cesena (96758 inhabitants)
30 Km W of Pesaro (94582 inhabitants)
41 Km W of Fano (60888 inhabitants)
48 Km E of Forlì (117913 inhabitants)
53 Km SE of Ravenna (159116 inhabitants)
62 Km E of Faenza (58541 inhabitants)
77 Km E of Imola (69797 inhabitants)
83 Km NE of Arezzo (99543 inhabitants)
89 Km NW of Ancona (100861 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 2023-07-17
23:23:10		 44.0278 12.5732 10 2023-07-17
23:31:09		 Sala Sismica INGV-Roma 119356611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-17 23:23:10 ± 0.19
Latitude 44.0278 ± 0.0117
Longitude 12.5732 ± 0.0138
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119356611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1107
Semi-minor axis of confidence ellipse (meter) 967
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 119356611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-17 23:31:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2023-07-17T23:23:32.98 3.0 undecidable manual S 0.17 0
IV.ATPI.EHZ. 2023-07-17T23:23:32.58 3.0 undecidable manual S 0.62 0
IV.PIEI.HHZ. 2023-07-17T23:23:28.20 3.0 undecidable manual S -0.68 0
IV.MML1.EHZ. 2023-07-17T23:23:28.58 3.0 undecidable manual P 0.23 0
IV.ATVO.HHZ. 2023-07-17T23:23:23.21 3.0 positive manual P -0.25 0
IV.SSFR.HHZ. 2023-07-17T23:23:23.21 3.0 negative manual P 0.49 0
IV.CRE.HHZ. 2023-07-17T23:23:22.45 3.0 positive manual P 0.13 0
IV.ARVD.HHZ. 2023-07-17T23:23:22.39 3.0 positive manual P -0.03 0
IV.FRON.EHZ. 2023-07-17T23:23:20.91 3.0 negative manual P -0.18 0
IV.SFI.EHZ. 2023-07-17T23:23:20.40 3.0 undecidable manual P -0.44 0
IV.PESA.HHZ. 2023-07-17T23:23:19.98 0.6 undecidable manual S 114 23.3544 113 0.25 50
IV.PIEI.HHZ. 2023-07-17T23:23:19.91 3.0 positive manual P -0.6 0
IV.PARC.HHZ. 2023-07-17T23:23:19.14 3.0 positive manual P -0.42 0
IV.NARO.HHZ. 2023-07-17T23:23:18.84 3.0 undecidable manual P -0.32 0
IV.MPAG.EHZ. 2023-07-17T23:23:18.82 3.0 negative manual P -0.46 0
IV.CRTC.HHE. 2023-07-17T23:23:18.60 0.6 undecidable manual P 139 37.9287 50 0.34 48
IV.CPGN.EHE. 2023-07-17T23:23:17.56 0.1 undecidable manual P 219 32.2455 50 0.18 100
IV.RSM2.HHZ. 2023-07-17T23:23:17.28 0.6 undecidable manual S 226 14.2746 125 0.32 50
IV.PE3.EHZ. 2023-07-17T23:23:17.81 0.6 negative manual P 189 37.3293 50 -0.35 48
IV.BLLA.EHZ. 2023-07-17T23:23:17.75 0.6 undecidable manual S 327 15.1737 124 0.54 47
IV.PESA.HHZ. 2023-07-17T23:23:15.68 0.6 undecidable manual P 114 23.3544 113 -0.31 49
IV.RSM2.HHZ. 2023-07-17T23:23:14.03 0.3 undecidable manual P 226 14.2746 125 -0.36 74
IV.BLLA.EHZ. 2023-07-17T23:23:14.13 0.3 undecidable manual P 327 15.1737 124 -0.4 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RSM2.HHE. ML:1.6 0.00035099999999999997 0.3 AML other m 2023-07-17T23:23:17.68
IV.RSM2.HHN. ML:1.5 0.000317 0.3 AML other m 2023-07-17T23:23:17.83
IV.BLLA.EHE. ML:1.5 0.00029467275 0.1536 AML other m 2023-07-17T23:23:18.11
IV.BLLA.EHN. ML:1.8 0.00058727 0.2176 AML other m 2023-07-17T23:23:18.02
IV.PE3.EHE. ML:1.2 0.00006055382 0.1664 AML other m 2023-07-17T23:23:26.34
IV.MPAG.EHE. ML:1.4 0.000067 0.76 AML other m 2023-07-17T23:23:27.07
IV.NARO.HHE. ML:1.0 0.00003115668 0.1408 AML other m 2023-07-17T23:23:28.74
IV.NARO.HHN. ML:1.1 0.00003438034 0.1024 AML other m 2023-07-17T23:23:27.88
IV.MPAG.EHN. ML:1.3 0.00006189559 0.3072 AML other m 2023-07-17T23:23:27.94
IV.PE3.EHN. ML:1.2 0.00006469549 0.3456 AML other m 2023-07-17T23:23:32.53
IV.PARC.HHE. ML:1.1 0.00002794442 0.1408 AML other m 2023-07-17T23:23:28.90
IV.PIEI.HHN. ML:1.2 0.000036961565 0.1152 AML other m 2023-07-17T23:23:30.58
IV.PIEI.HHE. ML:1.4 0.00006166818999999999 0.1152 AML other m 2023-07-17T23:23:31.19
IV.SFI.EHE. ML:1.4 0.000049010325 0.2816 AML other m 2023-07-17T23:23:31.05
IV.SFI.EHN. ML:1.6 0.0000835 0.26 AML other m 2023-07-17T23:23:30.68
IV.FRON.EHN. ML:1.4 0.00005728635 0.2176 AML other m 2023-07-17T23:23:30.85
IV.PARC.HHN. ML:1.1 0.00003105 0.74 AML other m 2023-07-17T23:23:31.46
IV.CRE.HHE. ML:1.1 0.000018799999999999996 0.42 AML other m 2023-07-17T23:23:33.18
IV.CRE.HHN. ML:1.2 0.0000318 0.22 AML other m 2023-07-17T23:23:33.48
IV.ARVD.HHE. ML:1.1 0.000026915295 0.1408 AML other m 2023-07-17T23:23:33.88
IV.SSFR.HHN. ML:1.8 0.00009945291 0.256 AML other m 2023-07-17T23:23:33.97
IV.FRON.EHE. ML:1.1 0.000032349999999999994 0.84 AML other m 2023-07-17T23:23:34.46
IV.ARVD.HHN. ML:1.0 0.0000196 0.14 AML other m 2023-07-17T23:23:34.19
IV.SSFR.HHE. ML:1.8 0.00009755 0.18 AML other m 2023-07-17T23:23:34.40
IV.ATVO.HHN. ML:1.5 0.00005015 0.2 AML other m 2023-07-17T23:23:34.68
IV.ATVO.HHE. ML:1.5 0.00005024619 0.3968 AML other m 2023-07-17T23:23:35.01
IV.MPAG.HNE. ML:2.0 0.0002925355 0.5888 AML other m 2023-07-17T23:23:26.26
IV.MPAG.HNN. ML:2.1 0.0003277618 0.64 AML other m 2023-07-17T23:23:23.85
IV.PIEI.HNE. ML:1.7 0.00010357699000000001 0.448 AML other m 2023-07-17T23:23:25.04
IV.PIEI.HNN. ML:1.7 0.00011371149999999999 0.64 AML other m 2023-07-17T23:23:37.07
IV.SFI.HNE. ML:1.8 0.00012030025500000001 0.9856 AML other m 2023-07-17T23:23:41.41
IV.SFI.HNN. ML:1.9 0.00015687280000000001 1.1904 AML other m 2023-07-17T23:23:19.42
IV.SSFR.HNE. ML:1.9 0.00014669320499999998 0.4992 AML other m 2023-07-17T23:23:40.21
IV.SSFR.HNN. ML:1.9 0.00014169155 0.5248 AML other m 2023-07-17T23:23:29.28
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