ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.1 on date 16-03-2019 and time 22:09:09 (Italy) in region 4 km W Bagno di Romagna (FC)

A magnitude ML 1.1 earthquake occured in region: 4 km W Bagno di Romagna (FC), on

  • 16-03-2019 21:09:09 (UTC)
  • 16-03-2019 22:09:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.86, 11.93 at 10 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
Bagno di Romagna FC 4 6026 6026
Verghereto FC 9 1907 7933
Santa Sofia FC 10 4136 12069
Galeata FC 15 2516 14585
Civitella di Romagna FC 16 3786 18371
Chiusi della Verna AR 18 2023 20394
Premilcuore FC 18 799 21193
Sarsina FC 18 3446 24639
Pratovecchio Stia AR 19 5845 30484
Casteldelci RN 20 407 30891

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Cesena (96758 inhabitants)
41 Km S of Forlì (117913 inhabitants)
44 Km N of Arezzo (99543 inhabitants)
47 Km S of Faenza (58541 inhabitants)
55 Km E of Firenze (382808 inhabitants)
56 Km W of Rimini (147750 inhabitants)
57 Km SE of Imola (69797 inhabitants)
61 Km E of Scandicci (50609 inhabitants)
66 Km SW of Ravenna (159116 inhabitants)
67 Km E of Prato (191150 inhabitants)
77 Km NE of Siena (53903 inhabitants)
79 Km W of Pesaro (94582 inhabitants)
82 Km E of Pistoia (90315 inhabitants)
85 Km SE of Bologna (386663 inhabitants)
87 Km W of Fano (60888 inhabitants)
92 Km NW of Perugia (166134 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
Rev 100 ML 1.1 2019-03-16
21:09:09
43.86 11.93 10 2019-03-16
22:46:01
Sala Sismica INGV-Roma 66611561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-16 21:09:09 ± 0.08
Latitude 43.86 ± 0.00
Longitude 11.93 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66611561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 606
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.41818
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 66611561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-16 22:46:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHZ. 2019-03-16T21:09:21.12 0.3 undecidable manual S 134 0.3076 50 0 72
IV.LMD.HHZ. 2019-03-16T21:09:20.08 0.3 undecidable manual S 323 0.2698 50 0.08 72
IV.RUFI.EHZ. 2019-03-16T21:09:20.94 0.3 undecidable manual S 266 0.3049 50 -0.1 71
IV.BADI.EHE. 2019-03-16T21:09:17.88 0.3 undecidable manual P 147 0.4182 50 -0.12 69
IV.BRIS.HHE. 2019-03-16T21:09:17.73 0.3 undecidable manual P 342 0.3822 50 0.34 67
IV.PARC.HHZ. 2019-03-16T21:09:16.04 0.3 undecidable manual P 134 0.3076 50 -0.07 71
IV.RUFI.EHZ. 2019-03-16T21:09:16.03 0.3 undecidable manual P 266 0.3049 50 -0.04 72
IV.LMD.HHZ. 2019-03-16T21:09:15.27 0.3 undecidable manual P 323 0.2698 50 -0.19 70
IV.ASQU.HHZ. 2019-03-16T21:09:15.07 0.3 undecidable manual S 238 0.1205 126 0.03 75
IV.SFI.EHZ. 2019-03-16T21:09:13.52 0.1 undecidable manual S 306 0.0746 140 -0.21 97
IV.ASQU.HHZ. 2019-03-16T21:09:12.86 0.1 undecidable manual P 238 0.1205 126 0.25 95
IV.SFI.EHZ. 2019-03-16T21:09:11.90 0.1 undecidable manual P 306 0.0746 140 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:0.8 2.3302135E-5 0.2816 AML other m 2019-03-16T21:09:21.72
IV.SFI.EHN. ML:1.1 0.00019692515 0.0896 AML other m 2019-03-16T21:09:13.70
IV.SFI.HNN. ML:1.1 0.0001873625 0.0896 AML other m 2019-03-16T21:09:13.70
IV.ASQU.HHN. ML:1.2 0.00016035085 0.1792 AML other m 2019-03-16T21:09:15.33
IV.LMD.HHE. ML:1.2 7.082682E-5 0.1408 AML other m 2019-03-16T21:09:20.36
IV.LMD.HHN. ML:1 4.9085335E-5 0.128 AML other m 2019-03-16T21:09:21.11
IV.SFI.EHE. ML:1 0.0001501377 0.0768 AML other m 2019-03-16T21:09:13.76
IV.FNVD.HHE. ML:2.7 0.0007555 0.54 AML other m 2019-03-16T21:09:36.12
IV.SFI.HNE. ML:1 0.000148537155 0.064 AML other m 2019-03-16T21:09:13.76
IV.ASQU.HHE. ML:1.3 0.00020635695 0.1792 AML other m 2019-03-16T21:09:15.40
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