Earthquake with magnitude of ML 1.8 on date 24-07-2020 and time 20:07:48 (Italy) in region 5 km W Galeata (FC)

A magnitude ML 1.8 earthquake occured in region: 5 km W Galeata (FC), on

  • 24-07-2020 18:07:48 (UTC)
  • 24-07-2020 20:07:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.98, 11.85 at 29 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
Galeata FC 5 2516 2516
Santa Sofia FC 6 4136 6652
Premilcuore FC 6 799 7451
Civitella di Romagna FC 8 3786 11237
Portico e San Benedetto FC 8 756 11993
Rocca San Casciano FC 10 1910 13903
Tredozio FC 14 1212 15115
Dovadola FC 16 1653 16768
Bagno di Romagna FC 17 6026 22794
Predappio FC 17 6346 29140
San Godenzo FI 19 1167 30307

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Forlì (117913 inhabitants)
35 Km S of Faenza (58541 inhabitants)
36 Km W of Cesena (96758 inhabitants)
43 Km S of Imola (69797 inhabitants)
53 Km E of Firenze (382808 inhabitants)
56 Km SW of Ravenna (159116 inhabitants)
57 Km N of Arezzo (99543 inhabitants)
58 Km W of Rimini (147750 inhabitants)
59 Km E of Scandicci (50609 inhabitants)
61 Km E of Prato (191150 inhabitants)
70 Km SE of Bologna (386663 inhabitants)
75 Km E of Pistoia (90315 inhabitants)
84 Km NE of Siena (53903 inhabitants)
85 Km W of Pesaro (94582 inhabitants)
95 Km W of Fano (60888 inhabitants)
97 Km S of Ferrara (133155 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 1.8 2020-07-24
18:07:48
43.98 11.85 29 2020-07-24
18:14:31
Sala Sismica INGV-Roma 81312321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-24 18:07:48 ± 0.35
Latitude 43.98 ± 0.01
Longitude 11.85 ± 0.03
Depth (km) 29 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81312321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2392
Semi-minor axis of confidence ellipse (meter) 1176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 2390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.6
Num. used stations 20
Type of magnitude ML
Reference to an origin 81312321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-24 18:14:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ILOS.HHZ. 2020-07-24T18:10:23.40 3.0 undecidable manual Sn 0.17 0
XK.SELL.HHZ. 2020-07-24T18:10:21.12 3.0 undecidable manual Sn -5.7 0
IV.PZUN.HHZ. 2020-07-24T18:09:47.69 3.0 undecidable manual Sn 2.64 0
AC.VLO.HHZ. 2020-07-24T18:09:47.11 3.0 positive manual Pg 22.16 0
IV.IACL.HHZ. 2020-07-24T18:09:24.40 3.0 undecidable manual Pg 12.12 0
IV.IFOR.HHZ. 2020-07-24T18:09:20.20 3.0 undecidable manual Sn -4.02 0
XK.SELL.HHZ. 2020-07-24T18:09:17.60 3.0 positive manual Pn -0.03 0
IV.CIGN.HHZ. 2020-07-24T18:09:14.34 3.0 undecidable manual Sn -1.23 0
IV.CELI.HHZ. 2020-07-24T18:09:10.70 3.0 undecidable manual Pg -1.48 0
IT.ACQ.HGZ. 2020-07-24T18:09:06.03 3.0 undecidable manual Sn 6.89 0
IV.SALB.HHZ. 2020-07-24T18:09:05.65 3.0 undecidable manual Pn -0.28 0
IV.MILN.HNZ. 2020-07-24T18:08:56.71 3.0 undecidable manual Sn 0.84 0
NI.POLC.HHZ. 2020-07-24T18:08:55.75 3.0 undecidable manual Sg 7.24 0
ST.CARE.EHZ. 2020-07-24T18:08:35.36 3.0 negative manual Pg 6.31 0
IV.CADC.HNZ. 2020-07-24T18:08:22.18 3.0 undecidable manual Pn 2.16 0
NI.POLC.HHZ. 2020-07-24T18:08:21.60 3.0 undecidable manual Pn -0.8 0
IV.SACS.HNZ. 2020-07-24T18:08:21.95 3.0 undecidable manual S -2.3 0
IV.ARRO.EHZ. 2020-07-24T18:08:16.30 3.0 undecidable manual Pn 1.79 0
IV.FIR.HHZ. 2020-07-24T18:08:07.66 3.0 undecidable manual S 0.3 0
IV.PARC.HHZ. 2020-07-24T18:08:05.77 0.3 undecidable manual S 139 0.4308 115 0.73 62
IV.VISG.HHZ. 2020-07-24T18:08:04.16 0.6 undecidable manual S 305 0.3669 120 0.82 39
IV.CRE.HHZ. 2020-07-24T18:08:03.87 0.6 undecidable manual S 169 0.3651 120 0.56 44
IV.BRIS.HHZ. 2020-07-24T18:08:01.12 0.3 undecidable manual S 346 0.2545 131 0.5 69
IV.ASQU.HHZ. 2020-07-24T18:07:59.23 0.6 undecidable manual S 194 0.1862 140 0.04 51
IV.PARC.HHZ. 2020-07-24T18:07:58.04 0.6 negative manual P 139 0.4308 115 -0.11 48
IV.LMD.HHZ. 2020-07-24T18:07:57.77 0.6 undecidable manual S 314 0.1439 148 -0.69 45
IV.VISG.HHZ. 2020-07-24T18:07:57.19 0.1 undecidable manual P 305 0.3669 120 0.02 100
IV.SFI.EHZ. 2020-07-24T18:07:57.40 0.6 undecidable manual S 182 0.0728 163 -0.17 52
IV.CRE.HHZ. 2020-07-24T18:07:57.07 0.1 negative manual P 169 0.3651 120 -0.08 98
IV.SEI.HHZ. 2020-07-24T18:07:57.59 0.6 positive manual P 282 0.3624 120 0.48 45
IV.BRIS.HHZ. 2020-07-24T18:07:55.47 0.1 positive manual P 346 0.2545 131 -0.13 100
IV.RUFI.EHZ. 2020-07-24T18:07:55.85 1.0 negative manual P 241 0.2824 127 -0.12 25
IV.ASQU.HHZ. 2020-07-24T18:07:54.64 1.0 positive manual P 194 0.1862 140 -0.13 25
IV.LMD.HHZ. 2020-07-24T18:07:53.77 0.1 undecidable manual P 314 0.1439 148 -0.58 92
IV.SFI.EHZ. 2020-07-24T18:07:53.49 0.1 positive manual P 182 0.0728 163 -0.35 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHN. ML:1.4 0.0001415 0.32 AML other m 2020-07-24T18:07:57.62
IV.SFI.EHE. ML:1.3 9.36E-5 0.8 AML other m 2020-07-24T18:07:58.01
IV.LMD.HHE. ML:1.5 0.0001325 0.64 AML other m 2020-07-24T18:07:58.85
IV.LMD.HHN. ML:1.7 0.0002155 0.34 AML other m 2020-07-24T18:07:58.74
IV.ASQU.HHE. ML:1.7 0.0002295 0.22 AML other m 2020-07-24T18:07:59.68
IV.ASQU.HHN. ML:2 0.0004015 0.22 AML other m 2020-07-24T18:07:59.47
IV.BRIS.HHN. ML:1.8 0.0001995 0.18 AML other m 2020-07-24T18:08:01.41
IV.BRIS.HHE. ML:2 0.0003985 0.24 AML other m 2020-07-24T18:08:01.48
IV.CRE.HHN. ML:1.8 0.0001725 0.38 AML other m 2020-07-24T18:08:04.18
IV.VISG.HHN. ML:1.2 4.05E-5 0.72 AML other m 2020-07-24T18:08:04.33
IV.CRE.HHE. ML:1.2 4.21E-5 0.2 AML other m 2020-07-24T18:08:04.85
IV.SEI.HHE. ML:1.4 7.14E-5 0.38 AML other m 2020-07-24T18:08:05.24
IV.VISG.HHE. ML:1.3 5.075E-5 0.58 AML other m 2020-07-24T18:08:05.64
IV.SEI.HHN. ML:1.6 0.0001062 0.68 AML other m 2020-07-24T18:08:05.47
NI.POLC.HHN. ML:3.5 0.000709 0.98 AML other m 2020-07-24T18:09:00.61
NI.POLC.HHE. ML:3.6 0.000877 1.3 AML other m 2020-07-24T18:09:00.21
IV.MILN.HNE. ML:3.6 0.000614 0.34 AML other m 2020-07-24T18:09:23.65
IV.MILN.HHN. ML:3.7 0.000773 0.34 AML other m 2020-07-24T18:09:23.48
IV.MILN.HNN. ML:3.6 0.0006005 0.6 AML other m 2020-07-24T18:09:23.48
IV.MILN.HHE. ML:3.5 0.000481 1.32 AML other m 2020-07-24T18:09:26.20
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