Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 24-03-2023 and time 01:57:24 (UTC) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

A magnitude ML 1.8 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

  • 24-03-2023 01:57:24 (UTC)
  • 24-03-2023 02:57:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0830, 12.8720 at 34 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
Gabicce Mare PU 16 5781 5781
Cattolica RN 17 17125 22906
Gradara PU 18 4835 27741
Misano Adriatico RN 19 13014 40755
Pesaro PU 19 94582 135337
Riccione RN 20 34965 170302

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Pesaro (94582 inhabitants)
25 Km E of Rimini (147750 inhabitants)
29 Km NW of Fano (60888 inhabitants)
51 Km E of Cesena (96758 inhabitants)
65 Km SE of Ravenna (159116 inhabitants)
68 Km E of Forlì (117913 inhabitants)
73 Km NW of Ancona (100861 inhabitants)
82 Km E of Faenza (58541 inhabitants)
97 Km E of Imola (69797 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 1.8 2023-03-24
01:57:24		 44.0832 12.8725 34 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116116511
Reviewed
Rev100 		ML 1.7 2023-03-24
01:57:23		 44.0687 13.0262 38 2023-03-24
02:11:49		 Sala Sismica INGV-Roma 115678611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-24 01:57:24 ± 0.14
Latitude 44.0832 ± 0.0081
Longitude 12.8725 ± 0.0125
Depth (km) 34 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116116511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1030
Semi-minor axis of confidence ellipse (meter) 769
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.57925
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 116116511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-20 16:44:43

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 115678611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-24 02:11:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MABI.HHZ. 2023-03-24T01:58:04.93 0.3 undecidable manual P 321 286.3023 54 0.56 22
IV.MAGA.HHZ. 2023-03-24T01:58:00.29 0.3 undecidable manual P 318 257.4534 54 -0.49 29
IV.CTI.HHZ. 2023-03-24T01:57:58.41 0.6 undecidable manual P 337 238.0839 54 0.04 25
IV.AOI.HHZ. 2023-03-24T01:57:51.00 0.6 undecidable manual S 135 83.0502 108 1.16 34
IV.ATVO.HHZ. 2023-03-24T01:57:50.90 0.6 undecidable manual S 206 86.247 54 0.26 44
IV.TB03.DHZ.01 2023-03-24T01:57:50.69 0.6 undecidable manual S 206 84.249 108 0.56 40
IV.TB01.DHZ.01 2023-03-24T01:57:50.95 0.6 undecidable manual S 204 85.3479 107 0.54 41
IV.CING.HHZ. 2023-03-24T01:57:50.60 0.6 undecidable manual S 162 82.6506 108 0.87 37
IV.TSM2.DHN.01 2023-03-24T01:57:49.37 0.6 undecidable manual S 202 82.1511 108 -0.22 46
IV.ATPI.EHZ. 2023-03-24T01:57:49.00 0.6 undecidable manual S 208 79.6647 109 0.04 47
IV.SMA1.EHZ. 2023-03-24T01:57:49.43 3.0 undecidable manual P 0
IV.ATPC.HHE. 2023-03-24T01:57:48.25 0.6 undecidable manual S 207 74.6697 110 0.54 42
IV.ATSC.EHE. 2023-03-24T01:57:48.09 0.6 undecidable manual S 192 74.6697 110 0.39 44
IV.SSFR.HHZ. 2023-03-24T01:57:47.20 0.6 undecidable manual S 186 72.0723 111 0.12 47
IV.ATBU.EHZ. 2023-03-24T01:57:47.47 0.6 undecidable manual S 201 72.1722 111 0.37 44
IV.PARC.HHZ. 2023-03-24T01:57:46.10 0.6 undecidable manual S 227 69.9744 112 -0.44 45
IV.APEC.HNN. 2023-03-24T01:57:46.10 0.6 undecidable manual S 212 68.5758 112 -0.09 48
IV.PIEI.HHZ. 2023-03-24T01:57:45.50 0.6 undecidable manual S 204 66.4779 113 -0.18 48
IV.ARVD.HHZ. 2023-03-24T01:57:45.60 0.6 undecidable manual S 175 65.0904 113 0.25 46
IV.MF5.EHZ. 2023-03-24T01:57:45.83 0.3 undecidable manual P 159 130.3695 54 0.87 51
IV.FRON.EHZ. 2023-03-24T01:57:45.40 0.6 undecidable manual S 191 63.7917 114 0.38 45
IV.CPGN.EHZ. 2023-03-24T01:57:44.30 0.6 undecidable manual S 235 54.1014 118 1.62 24
IV.NARO.HHZ. 2023-03-24T01:57:43.30 0.6 undecidable manual S 204 57.3981 116 -0.16 48
IV.FDMO.HHZ. 2023-03-24T01:57:43.26 0.3 undecidable manual P 171 117.3936 54 -0.09 64
IV.MML1.EHZ. 2023-03-24T01:57:42.14 0.3 undecidable manual P 176 107.8143 54 -0.02 67
IV.PE3.EHZ. 2023-03-24T01:57:42.50 0.3 undecidable manual S 215 52.4031 119 0.21 71
IV.ATCC.EHZ. 2023-03-24T01:57:41.43 0.3 undecidable manual P 191 101.3208 54 0.08 68
IV.MPAG.EHZ. 2023-03-24T01:57:41.90 0.6 undecidable manual S 190 51.1155 119 -0.1 49
IV.BRIS.HHZ. 2023-03-24T01:57:40.35 0.3 undecidable manual P 280 89.4438 54 0.48 63
IV.LMD.HHZ. 2023-03-24T01:57:40.46 0.3 undecidable manual P 270 92.8404 54 0.16 67
IV.CRE.HHZ. 2023-03-24T01:57:40.87 0.3 undecidable manual P 235 89.8434 54 0.94 52
IV.FOSV.EHZ. 2023-03-24T01:57:39.36 0.3 undecidable manual P 186 87.9453 54 -0.32 65
IV.ATVO.HHZ. 2023-03-24T01:57:39.06 0.3 undecidable manual P 206 86.247 54 -0.42 65
IV.AOI.HHZ. 2023-03-24T01:57:39.36 0.3 undecidable manual P 135 83.0502 108 0.35 67
IV.CING.HHZ. 2023-03-24T01:57:39.03 0.3 undecidable manual P 162 82.6506 108 0.08 70
IV.BLLA.EHE. 2023-03-24T01:57:39.45 0.6 undecidable manual S 282 32.745 133 1.46 29
IV.TB01.DHZ.01 2023-03-24T01:57:38.91 0.3 undecidable manual P 204 85.3479 107 -0.43 65
IV.PCRO.HNE. 2023-03-24T01:57:38.62 0.3 undecidable manual P 135 74.5698 110 0.84 59
IV.CRTC.HHZ. 2023-03-24T01:57:38.80 0.3 undecidable manual S 179 34.9428 131 0.37 72
IV.SFI.EHZ. 2023-03-24T01:57:38.97 0.3 undecidable manual P 257 84.1491 108 -0.2 68
IV.ATPI.EHZ. 2023-03-24T01:57:38.14 0.3 undecidable manual P 208 79.6647 109 -0.37 66
IV.TSM2.DHN.01 2023-03-24T01:57:38.28 0.1 undecidable manual P 202 82.1511 108 -0.59 82
IV.TB03.DHZ.01 2023-03-24T01:57:38.65 0.3 undecidable manual P 206 84.249 108 -0.53 63
IV.BRSN.EHZ. 2023-03-24T01:57:37.86 0.6 undecidable manual P 290 66.8775 113 1.2 32
IV.ATBU.EHZ. 2023-03-24T01:57:37.12 0.1 undecidable manual P 201 72.1722 111 -0.31 90
IV.ATPC.HHE. 2023-03-24T01:57:37.36 0.1 undecidable manual P 207 74.6697 110 -0.42 88
IV.ATSC.EHE. 2023-03-24T01:57:37.27 0.1 undecidable manual P 192 74.6697 110 -0.51 86
IV.ARVD.HHZ. 2023-03-24T01:57:36.00 0.3 undecidable manual P 175 65.0904 113 -0.42 67
IV.PIEI.HHZ. 2023-03-24T01:57:36.10 0.3 undecidable manual P 204 66.4779 113 -0.51 66
IV.SSFR.HHZ. 2023-03-24T01:57:36.94 0.3 undecidable manual P 186 72.0723 111 -0.48 65
IV.PARC.HHZ. 2023-03-24T01:57:36.52 0.1 undecidable manual P 227 69.9744 112 -0.58 85
IV.APEC.HNN. 2023-03-24T01:57:36.66 0.1 undecidable manual P 212 68.5758 112 -0.25 93
IV.PESA.HHZ. 2023-03-24T01:57:35.20 0.3 undecidable manual S 189 15.9729 153 -0.05 79
IV.FRON.EHZ. 2023-03-24T01:57:35.77 0.1 undecidable manual P 191 63.7917 114 -0.46 89
IV.CPGN.EHZ. 2023-03-24T01:57:35.36 0.3 undecidable manual P 235 54.1014 118 0.48 67
IV.COR1.HNN. 2023-03-24T01:57:35.19 0.3 undecidable manual P 168 51.1155 119 0.71 63
IV.NARO.HHZ. 2023-03-24T01:57:34.73 0.3 undecidable manual P 204 57.3981 116 -0.6 65
IV.PE3.EHZ. 2023-03-24T01:57:34.45 0.3 undecidable manual P 215 52.4031 119 -0.2 72
IV.MPAG.EHZ. 2023-03-24T01:57:33.90 0.3 undecidable manual P 190 51.1155 119 -0.58 65
IV.BLLA.EHE. 2023-03-24T01:57:32.40 0.3 undecidable manual P 282 32.745 133 0.23 74
IV.CRTC.HHZ. 2023-03-24T01:57:32.26 0.1 undecidable manual P 179 34.9428 131 -0.16 99
IV.PESA.HHZ. 2023-03-24T01:57:30.31 0.1 undecidable manual P 189 15.9729 153 -0.28 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PESA.HHE. ML:2.4 0.0010500000000000002 1.9 AML other m 2023-03-24T01:57:35.99
IV.PESA.HHN. ML:2.2 0.0006274999999999999 0.76 AML other m 2023-03-24T01:57:36.01
IV.CRTC.HHN. ML:2.2 0.0004615 1.76 AML other m 2023-03-24T01:57:39.11
IV.CRTC.HHE. ML:2.1 0.00033 0.56 AML other m 2023-03-24T01:57:39.72
IV.MPAG.EHE. ML:1.6 0.00008460000000000001 1.28 AML other m 2023-03-24T01:57:42.73
IV.NARO.HHE. ML:1.7 0.00009934999999999999 0.84 AML other m 2023-03-24T01:57:43.45
IV.NARO.HHN. ML:1.6 0.00006920000000000002 0.22 AML other m 2023-03-24T01:57:43.55
IV.MPAG.EHN. ML:1.7 0.000097 1.26 AML other m 2023-03-24T01:57:43.91
IV.FRON.EHE. ML:1.4 0.000042499999999999996 1.3 AML other m 2023-03-24T01:57:45.16
IV.ARVD.HHE. ML:1.4 0.0000374 0.6 AML other m 2023-03-24T01:57:46.23
IV.FRON.EHN. ML:1.8 0.00009735 0.82 AML other m 2023-03-24T01:57:46.12
IV.PIEI.HHN. ML:1.7 0.00008665 0.1 AML other m 2023-03-24T01:57:46.69
IV.PIEI.HHE. ML:1.8 0.00010645 1.6 AML other m 2023-03-24T01:57:47.02
IV.PARC.HHE. ML:1.8 0.00009675000000000001 0.2 AML other m 2023-03-24T01:57:47.43
IV.PARC.HHN. ML:1.7 0.00006835 0.76 AML other m 2023-03-24T01:57:47.09
IV.SSFR.HHN. ML:2.0 0.00015749999999999998 0.64 AML other m 2023-03-24T01:57:48.47
IV.ARVD.HHN. ML:1.3 0.00003135 0.6 AML other m 2023-03-24T01:57:48.80
IV.SSFR.HHE. ML:2.0 0.0001555 0.16 AML other m 2023-03-24T01:57:49.34
IV.ATPI.EHE. ML:2.0 0.0001075 0.3 AML other m 2023-03-24T01:57:49.84
IV.ATPI.EHN. ML:1.8 0.00007485 1.72 AML other m 2023-03-24T01:57:50.91
IV.ATVO.HHN. ML:1.8 0.00007340000000000001 0.48 AML other m 2023-03-24T01:57:51.47
IV.SFI.EHE. ML:1.7 0.00005275 1 AML other m 2023-03-24T01:57:51.30
IV.CING.HHE. ML:1.6 0.000043249999999999994 0.98 AML other m 2023-03-24T01:57:51.46
IV.ATVO.HHE. ML:1.7 0.000052900000000000005 0.58 AML other m 2023-03-24T01:57:52.56
IV.SFI.EHN. ML:1.8 0.00006984999999999999 0.8 AML other m 2023-03-24T01:57:52.35
IV.CING.HHN. ML:1.6 0.00004770000000000001 0.42 AML other m 2023-03-24T01:57:52.40
IV.LMD.HHN. ML:1.8 0.00006515 0.36 AML other m 2023-03-24T01:57:54.40
IV.LMD.HHE. ML:1.6 0.000045249999999999995 1.18 AML other m 2023-03-24T01:57:55.65
IV.FDMO.HHE. ML:1.6 0.00003245 1.32 AML other m 2023-03-24T01:58:02.23
IV.FDMO.HHN. ML:1.6 0.0000324 0.5 AML other m 2023-03-24T01:58:03.71
IV.RM33.EHE. ML:1.6 0.00001635 1.08 AML other m 2023-03-24T01:58:17.25
IV.RM33.EHN. ML:1.7 0.00001795 1.56 AML other m 2023-03-24T01:58:19.86
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