Earthquake with magnitude of ML 1.6 on date 14-07-2020 and time 13:49:14 (Italy) in region 2 km S Riolo Terme (RA)

A magnitude ML 1.6 earthquake occured in region: 2 km S Riolo Terme (RA), on

  • 14-07-2020 11:49:14 (UTC)
  • 14-07-2020 13:49:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.26, 11.73 at 19 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 2 5720 5720
Brisighella RA 6 7639 13359
Castel Bolognese RA 9 9554 22913
Casola Valsenio RA 9 2617 25530
Casalfiumanese BO 10 3438 28968
Imola BO 10 69797 98765
Borgo Tossignano BO 11 3288 102053
Faenza RA 13 58541 160594
Modigliana FC 13 4560 165154
Fontanelice BO 13 1943 167097
Dozza BO 13 6652 173749
Solarolo RA 14 4488 178237
Bagnara di Romagna RA 16 2429 180666
Mordano BO 17 4760 185426
Castel del Rio BO 18 1246 186672
Castel San Pietro Terme BO 19 20811 207483
Castel Guelfo di Bologna BO 19 4455 211938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km S of Imola (69797 inhabitants)
13 Km W of Faenza (58541 inhabitants)
26 Km W of Forlì (117913 inhabitants)
40 Km SE of Bologna (386663 inhabitants)
41 Km W of Ravenna (159116 inhabitants)
44 Km W of Cesena (96758 inhabitants)
64 Km S of Ferrara (133155 inhabitants)
66 Km NE of Prato (191150 inhabitants)
66 Km NE of Firenze (382808 inhabitants)
71 Km W of Rimini (147750 inhabitants)
71 Km NE of Scandicci (50609 inhabitants)
74 Km E of Pistoia (90315 inhabitants)
77 Km SE of Modena (184973 inhabitants)
88 Km SE of Carpi (70699 inhabitants)
89 Km N of Arezzo (99543 inhabitants)
90 Km S of Rovigo (51867 inhabitants)
100 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 1.6 2020-07-14
11:49:14
44.26 11.73 19 2020-07-14
11:55:45
Sala Sismica INGV-Roma 81028551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-14 11:49:14 ± 0.2
Latitude 44.26 ± 0.01
Longitude 11.73 ± 0.01
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81028551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 905
Semi-minor axis of confidence ellipse (meter) 768
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46855
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81028551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-14 11:55:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTV.HNZ. 2020-07-14T11:49:49.47 3.0 undecidable manual S -0.11 0
IV.RINC.HHE. 2020-07-14T11:49:29.12 0.6 undecidable manual S 193 0.3858 104 0.38 45
IV.SFI.EHZ. 2020-07-14T11:49:28.38 0.3 undecidable manual S 166 0.3687 105 0.14 71
IV.SEI.HHZ. 2020-07-14T11:49:27.54 0.3 undecidable manual S 232 0.3363 107 0.22 71
IV.ASQU.HHE. 2020-07-14T11:49:24.48 0.1 undecidable manual P 174 0.4685 101 0.34 89
IV.LMD.HHZ. 2020-07-14T11:49:23.23 0.6 undecidable manual S 184 0.1862 124 -0.03 50
IV.VISG.HHZ. 2020-07-14T11:49:23.96 0.6 undecidable manual S 251 0.2221 118 -0.21 48
IV.RUFI.EHZ. 2020-07-14T11:49:23.97 0.1 undecidable manual P 200 0.4524 101 0.09 94
IV.RINC.HHE. 2020-07-14T11:49:22.64 0.1 undecidable manual P 193 0.3858 104 -0.13 94
IV.SFI.EHZ. 2020-07-14T11:49:22.02 1.0 undecidable manual P 166 0.3687 105 -0.46 22
IV.SEI.HHZ. 2020-07-14T11:49:21.71 0.6 negative manual P 232 0.3363 107 -0.24 46
IV.MTRZ.HNZ. 2020-07-14T11:49:20.41 0.1 undecidable manual P 283 0.2212 118 0.29 95
IV.BRIS.HHZ. 2020-07-14T11:49:20.83 0.6 undecidable manual S 143 0.0477 161 0.14 50
IV.LMD.HHZ. 2020-07-14T11:49:19.16 0.1 negative manual P 184 0.1862 124 -0.44 92
IV.VISG.HHZ. 2020-07-14T11:49:19.70 0.3 undecidable manual P 251 0.2221 118 -0.43 68
IV.IMOL.EHZ. 2020-07-14T11:49:18.75 0.3 undecidable manual P 7 0.0971 145 0.25 73
IV.BRIS.HHZ. 2020-07-14T11:49:17.93 0.1 positive manual P 143 0.0477 161 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHE. ML:1.8 0.0006465 1.64 AML other m 2020-07-14T11:49:20.97
IV.BRIS.HHN. ML:1.7 0.000409 0.22 AML other m 2020-07-14T11:49:21.13
IV.LMD.HHN. ML:1.5 0.000191 1.42 AML other m 2020-07-14T11:49:23.26
IV.LMD.HHE. ML:1.6 0.0002025 0.32 AML other m 2020-07-14T11:49:24.13
IV.VISG.HHE. ML:1.5 0.0001705 1.02 AML other m 2020-07-14T11:49:24.63
IV.VISG.HHN. ML:1.6 0.000187 1.7 AML other m 2020-07-14T11:49:24.99
IV.SEI.HHE. ML:1.6 0.0001185 0.7 AML other m 2020-07-14T11:49:28.30
IV.SEI.HHN. ML:1.7 0.000153 0.58 AML other m 2020-07-14T11:49:28.41
IV.SFI.EHE. ML:1.3 5.94E-5 1.18 AML other m 2020-07-14T11:49:28.93
IV.SFI.EHN. ML:1.3 5.84E-5 0.6 AML other m 2020-07-14T11:49:28.66
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