Earthquake with magnitude of ML 1.4 on date 05-12-2021 and time 14:22:26 (UTC) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

A magnitude ML 1.4 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

  • 05-12-2021 14:22:26 (UTC)
  • 05-12-2021 15:22:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.099, 12.659 at 28 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.

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 9 147750 147750
Riccione RN 11 34965 182715
Misano Adriatico RN 14 13014 195729
Coriano RN 16 10502 206231
Cattolica RN 16 17125 223356
Gabicce Mare PU 17 5781 229137
Bellaria-Igea Marina RN 17 19519 248656
Santarcangelo di Romagna RN 17 22089 270745
San Giovanni in Marignano RN 18 9417 280162
San Clemente RN 19 5577 285739
San Mauro Pascoli FC 19 11690 297429
Gradara PU 20 4835 302264

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Rimini (147750 inhabitants)
29 Km NW of Pesaro (94582 inhabitants)
34 Km E of Cesena (96758 inhabitants)
41 Km NW of Fano (60888 inhabitants)
51 Km SE of Ravenna (159116 inhabitants)
51 Km E of Forlì (117913 inhabitants)
65 Km E of Faenza (58541 inhabitants)
80 Km E of Imola (69797 inhabitants)
87 Km NW of Ancona (100861 inhabitants)
94 Km NE of Arezzo (99543 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2021-12-05
14:22:26
44.099 12.6593 28 2021-12-05
14:30:13
Sala Sismica INGV-Roma 98180291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-05 14:22:26 ± 0.8
Latitude 44.0990 ± 0.0324
Longitude 12.6593 ± 0.0376
Depth (km) 28 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98180291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3537
Semi-minor axis of confidence ellipse (meter) 2532
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 3540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 98180291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-05 14:30:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IX.SCL3.EHZ.02 2021-12-05T14:24:24.59 3.0 undecidable manual Sg 9.17 0
OT.OT13.EHZ. 2021-12-05T14:24:09.79 3.0 undecidable manual Sg 9.68 0
IX.SRN3.HHZ.02 2021-12-05T14:24:08.29 3.0 undecidable manual Sn -9.99 0
IX.RSF3.HHZ.02 2021-12-05T14:23:58.94 3.0 undecidable manual Sn -7.7 0
IV.BSSO.HHZ. 2021-12-05T14:23:57.82 3.0 undecidable manual Sg 8.75 0
OT.OT17.EHZ. 2021-12-05T14:23:44.35 3.0 undecidable manual Sn -9.37 0
IV.CDRU.HHZ. 2021-12-05T14:23:30.18 3.0 undecidable manual Pn 1.85 0
IV.ZEN8.EHZ. 2021-12-05T14:23:29.54 3.0 undecidable manual Sg 5.44 0
GU.CIRO.HHZ. 2021-12-05T14:23:25.29 3.0 negative manual Pn 1.11 0
IX.RSF3.HHZ.02 2021-12-05T14:23:24.27 3.0 undecidable manual Pn 2.33 0
IV.STAL.HHZ. 2021-12-05T14:23:23.36 3.0 undecidable manual Sn -2.16 0
IV.VBKN.HHZ. 2021-12-05T14:23:21.27 3.0 undecidable manual Pn 0.88 0
IV.MTMR.EHZ. 2021-12-05T14:23:15.87 3.0 positive manual Pn -5.79 0
IV.RIBO.EHZ.01 2021-12-05T14:23:15.75 3.0 undecidable manual Sn -2.16 0
IV.MNTT.EHZ. 2021-12-05T14:23:09.32 3.0 undecidable manual Sg 1.42 0
OX.CIMO.HHZ. 2021-12-05T14:23:07.91 3.0 undecidable manual Pg 8.27 0
IV.FERS.EHZ. 2021-12-05T14:23:04.62 3.0 undecidable manual Sg 2.95 0
IV.IMOL.HNZ. 2021-12-05T14:22:49.15 3.0 undecidable manual Sn -0.38 0
IV.MPAG.EHZ. 2021-12-05T14:22:44.19 0.3 undecidable manual S 171 0.4748 113 0.66 62
IV.NARO.HHZ. 2021-12-05T14:22:44.06 0.6 undecidable manual S 187 0.491 112 0.08 48
IV.EL6.EHZ. 2021-12-05T14:22:43.79 3.0 undecidable manual Pg 0.73 0
IV.ATPI.EHZ. 2021-12-05T14:22:39.51 3.0 negative manual Pg -0.88 0
IV.PIEI.HHZ. 2021-12-05T14:22:37.32 3.0 negative manual P -1.15 0
IV.MPAG.EHZ. 2021-12-05T14:22:36.76 0.3 undecidable manual P 171 0.4748 113 0.61 63
IV.NARO.HHZ. 2021-12-05T14:22:36.08 0.1 undecidable manual P 187 0.491 112 -0.33 88
IV.PESA.HHZ. 2021-12-05T14:22:36.82 0.1 undecidable manual S 140 0.2041 137 -0.02 100
IV.BLLA.EHZ. 2021-12-05T14:22:35.51 0.3 undecidable manual S 288 0.143 148 -0.21 74
IV.PE3.EHZ. 2021-12-05T14:22:35.27 0.1 undecidable manual P 196 0.4191 116 -0.01 96
IV.CPGN.EHZ. 2021-12-05T14:22:35.21 3.0 undecidable manual P 0.39 0
IV.BLLA.EHZ. 2021-12-05T14:22:32.28 0.1 undecidable manual P 288 0.143 148 0.64 86
IV.PESA.HHZ. 2021-12-05T14:22:31.99 0.1 undecidable manual P 140 0.2041 137 -0.3 95
IV.RSM2.HHE. 2021-12-05T14:22:31.25 0.3 undecidable manual P 224 0.223 135 -1.25 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PESA.HHN. ML:1.8 0.0002325771 0.0832 AML other m 2021-12-05T14:22:37.80
IV.PESA.HHE. ML:1.8 0.000229540525 0.1408 AML other m 2021-12-05T14:22:37.54
IV.NARO.HHE. ML:1.2 3.4738795E-5 0.1216 AML other m 2021-12-05T14:22:44.85
IV.NARO.HHN. ML:1.1 2.520266E-5 0.1216 AML other m 2021-12-05T14:22:45.74
IV.MPAG.EHE. ML:1.5 6.161702E-5 0.1536 AML other m 2021-12-05T14:22:45.88
IV.MPAG.EHN. ML:1.3 4.515883E-5 0.4992 AML other m 2021-12-05T14:22:47.22
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