Earthquake with magnitude of ML 1.4 on date 14-07-2020 and time 12:12:01 (Italy) in region 1 km NE Riolo Terme (RA)

A magnitude ML 1.4 earthquake occured in region: 1 km NE Riolo Terme (RA), on

  • 14-07-2020 10:12:01 (UTC)
  • 14-07-2020 12:12:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.28, 11.73 at 20 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
Riolo Terme RA 1 5720 5720
Castel Bolognese RA 7 9554 15274
Brisighella RA 7 7639 22913
Imola BO 8 69797 92710
Casalfiumanese BO 9 3438 96148
Casola Valsenio RA 11 2617 98765
Borgo Tossignano BO 11 3288 102053
Dozza BO 12 6652 108705
Faenza RA 12 58541 167246
Solarolo RA 13 4488 171734
Fontanelice BO 14 1943 173677
Bagnara di Romagna RA 14 2429 176106
Mordano BO 15 4760 180866
Modigliana FC 15 4560 185426
Castel San Pietro Terme BO 17 20811 206237
Castel Guelfo di Bologna BO 17 4455 210692
Castel del Rio BO 19 1246 211938
Massa Lombarda RA 20 10653 222591

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km S of Imola (69797 inhabitants)
12 Km W of Faenza (58541 inhabitants)
26 Km W of Forlì (117913 inhabitants)
39 Km SE of Bologna (386663 inhabitants)
40 Km W of Ravenna (159116 inhabitants)
44 Km W of Cesena (96758 inhabitants)
62 Km S of Ferrara (133155 inhabitants)
67 Km NE of Prato (191150 inhabitants)
68 Km NE of Firenze (382808 inhabitants)
71 Km W of Rimini (147750 inhabitants)
73 Km NE of Scandicci (50609 inhabitants)
76 Km NE of Pistoia (90315 inhabitants)
76 Km SE of Modena (184973 inhabitants)
87 Km SE of Carpi (70699 inhabitants)
88 Km S of Rovigo (51867 inhabitants)
91 Km N of Arezzo (99543 inhabitants)
99 Km E of Reggio nell'Emilia (171345 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2020-07-14
10:12:01
44.28 11.73 20 2020-07-14
10:24:27
Sala Sismica INGV-Roma 81027531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-14 10:12:01 ± 0.15
Latitude 44.28 ± 0.01
Longitude 11.73 ± 0.01
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81027531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 983
Semi-minor axis of confidence ellipse (meter) 688
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3966
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
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 81027531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-14 10:24:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SFI.EHZ. 2020-07-14T10:12:15.44 0.3 undecidable manual S 167 0.3858 106 0.16 70
IV.SEI.HHZ. 2020-07-14T10:12:14.77 0.3 undecidable manual S 230 0.3507 108 0.5 64
IV.LMD.HHZ. 2020-07-14T10:12:10.04 0.1 undecidable manual S 185 0.205 124 -0.33 93
IV.VISG.HHZ. 2020-07-14T10:12:10.94 0.1 undecidable manual S 246 0.2311 120 -0.1 98
IV.SFI.EHZ. 2020-07-14T10:12:09.23 0.1 undecidable manual P 167 0.3858 106 -0.03 94
IV.FIU.EHZ. 2020-07-14T10:12:09.28 0.3 undecidable manual P 335 0.3966 106 -0.16 69
IV.SEI.HHZ. 2020-07-14T10:12:08.82 0.1 undecidable manual P 230 0.3507 108 0.14 93
IV.BRIS.HHZ. 2020-07-14T10:12:07.84 0.1 undecidable manual S 156 0.063 158 0.21 96
IV.LMD.HHZ. 2020-07-14T10:12:06.12 0.1 undecidable manual P 185 0.205 124 -0.31 93
IV.VISG.HHZ. 2020-07-14T10:12:06.81 0.1 undecidable manual P 246 0.2311 120 -0.01 98
IV.MTRZ.HNZ. 2020-07-14T10:12:06.58 0.3 undecidable manual P 278 0.2212 121 -0.08 73
IV.BRIS.HHZ. 2020-07-14T10:12:04.91 0.1 undecidable manual P 156 0.063 158 0.06 100
IV.FAZ.HNZ. 2020-07-14T10:12:00.45 3.0 undecidable manual P 0
IV.CMPO.HNZ. 2020-07-14T10:11:48.59 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHE. ML:1.8 0.000471 0.34 AML other m 2020-07-14T10:12:08.00
IV.BRIS.HHN. ML:1.6 0.0003245 0.24 AML other m 2020-07-14T10:12:08.16
IV.LMD.HHN. ML:1.4 0.000137 1.42 AML other m 2020-07-14T10:12:10.28
IV.LMD.HHE. ML:1.4 0.000119 0.3 AML other m 2020-07-14T10:12:11.29
IV.SFI.EHE. ML:1.1 3.43E-5 1.18 AML other m 2020-07-14T10:12:15.94
IV.SFI.EHN. ML:1.1 4.09E-5 0.6 AML other m 2020-07-14T10:12:15.67
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download