Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-04-2013 and time 20:01:12 (Italy) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

A magnitude ML 1.3 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

  • 01-04-2013 18:01:12 (UTC)
  • 01-04-2013 20:01:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0620, 12.7730 at 24 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 11 5781 5781
Cattolica RN 11 17125 22906
Riccione RN 12 34965 57871
Misano Adriatico RN 12 13014 70885
Gradara PU 13 4835 75720
San Giovanni in Marignano RN 14 9417 85137
Rimini RN 17 147750 232887
Coriano RN 17 10502 243389
Tavullia PU 18 8003 251392
San Clemente RN 19 5577 256969
Morciano di Romagna RN 19 7045 264014

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Rimini (147750 inhabitants)
20 Km NW of Pesaro (94582 inhabitants)
31 Km NW of Fano (60888 inhabitants)
43 Km E of Cesena (96758 inhabitants)
60 Km SE of Ravenna (159116 inhabitants)
61 Km E of Forlì (117913 inhabitants)
75 Km E of Faenza (58541 inhabitants)
78 Km NW of Ancona (100861 inhabitants)
90 Km E of Imola (69797 inhabitants)
97 Km NE of Arezzo (99543 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 1.3 2013-04-01
18:01:12		 44.0623 12.7733 24 2015-01-20
11:24:30		 Bollettino Sismico Italiano INGV 4607761
Reviewed
Rev100 		ML 1.3 2013-04-01
18:01:12		 44.0737 12.6973 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3137221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-01 18:01:12 ± 0.35
Latitude 44.0623 ± 0.0261
Longitude 12.7733 ± 0.0363
Depth (km) 24 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4607761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3625
Semi-minor axis of confidence ellipse (meter) 1353
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 3620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 316
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.62413
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 4607761
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:04:03

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 3137221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-04-01 18:08:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATPC.HHZ. 2013-04-01T18:01:35.10 1.0 undecidable manual S 202 69.2751 103 0.94 17
IV.PIEI.HHZ. 2013-04-01T18:01:31.94 0.6 undecidable manual S 198 61.494 105 -0.18 44
IV.NARO.HHZ. 2013-04-01T18:01:29.50 0.3 undecidable manual S 197 52.4031 107 -0.3 66
IV.MPAG.EHZ. 2013-04-01T18:01:29.00 0.3 undecidable manual S 181 48.0186 109 0.3 68
IV.FSSB.HHZ. 2013-04-01T18:01:26.94 0.6 undecidable manual S 180 40.9257 113 0.01 48
IV.ATPC.HHZ. 2013-04-01T18:01:24.63 0.6 undecidable manual P 202 69.2751 103 -0.51 41
IV.PIEI.HHZ. 2013-04-01T18:01:24.56 0.1 undecidable manual P 198 61.494 105 0.59 80
IV.NARO.HHZ. 2013-04-01T18:01:22.36 0.1 undecidable manual P 197 52.4031 107 -0.26 89
IV.MPAG.EHZ. 2013-04-01T18:01:22.00 0.1 undecidable manual P 181 48.0186 109 0.01 95
IV.PESA.HHZ. 2013-04-01T18:01:21.00 0.6 undecidable manual S 158 14.4744 145 -0.27 47
IV.FSSB.HHZ. 2013-04-01T18:01:21.04 0.1 undecidable manual P 180 40.9257 113 0.07 95
IV.PESA.HHZ. 2013-04-01T18:01:17.66 0.1 undecidable manual P 158 14.4744 145 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FSSB.HHE. ML:1.5 0.00008285000000000001 0.18 AML other m 2013-04-01T18:01:28.32
IV.FSSB.HHN. ML:1.5 0.0000896 1.12 AML other m 2013-04-01T18:01:28.90
IV.NARO.HHE. ML:1.1 0.0000287 1.44 AML other m 2013-04-01T18:01:29.85
IV.NARO.HHN. ML:1.3 0.00004325 0.66 AML other m 2013-04-01T18:01:29.71
IV.PIEI.HHN. ML:1.2 0.000031100000000000004 0.38 AML other m 2013-04-01T18:01:33.91
IV.PIEI.HHE. ML:1.3 0.000039099999999999995 1.2 AML other m 2013-04-01T18:01:33.92
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