Earthquake with magnitude of Md 2.2 on date 22-05-1990 and time 16:37:20 (Italy) in region 6 km W Bagno di Romagna (FC)

A magnitude Md 2.2 earthquake occured in region: 6 km W Bagno di Romagna (FC), on

  • 22-05-1990 14:37:20 (UTC)
  • 22-05-1990 16:37:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8790, 11.9050 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 6 6026 6026
Santa Sofia FC 8 4136 10162
Verghereto FC 12 1907 12069
Galeata FC 13 2516 14585
Civitella di Romagna FC 15 3786 18371
Premilcuore FC 15 799 19170
Pratovecchio Stia AR 18 5845 25015
Portico e San Benedetto FC 19 756 25771
Sarsina FC 20 3446 29217
Chiusi della Verna AR 20 2023 31240

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Cesena (96758 inhabitants)
40 Km S of Forlì (117913 inhabitants)
45 Km S of Faenza (58541 inhabitants)
46 Km N of Arezzo (99543 inhabitants)
53 Km E of Firenze (382808 inhabitants)
55 Km S of Imola (69797 inhabitants)
57 Km W of Rimini (147750 inhabitants)
60 Km E of Scandicci (50609 inhabitants)
64 Km SW of Ravenna (159116 inhabitants)
65 Km E of Prato (191150 inhabitants)
77 Km NE of Siena (53903 inhabitants)
79 Km E of Pistoia (90315 inhabitants)
81 Km W of Pesaro (94582 inhabitants)
82 Km SE of Bologna (386663 inhabitants)
90 Km W of Fano (60888 inhabitants)
94 Km NW of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.2 1990-05-22
14:37:20
43.879 11.905 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 119409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-22 14:37:20 ± 0.219
Latitude 43.8790 ± 0.0184
Longitude 11.9050 ± 0.0167
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 119409

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2448.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00040
Epicentral distance of station farthest from the epicenter (degree) 0.00753
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 119409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:50:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1990-05-22T14:37:50.00 10.0 undecidable manual SG 116 0.8325 -0.54 0.3
--.ARV.Z. 1990-05-22T14:37:39.00 10.0 undecidable manual PG 116 0.8325 1.09 0.2
--.FIR.Z. 1990-05-22T14:37:38.00 10.0 undecidable manual SG 257 0.4773 -0.94 0.2
--.FIR.Z. 1990-05-22T14:37:34.00 10.0 undecidable manual PG! 257 0.4773 2.79 0
--.RSM.Z. 1990-05-22T14:37:34.96 10.0 undecidable manual SG 82 0.3996 -1.07 0.1
--.CRE.Z. 1990-05-22T14:37:31.50 10.0 undecidable manual SG 172 0.2553 0.63 0.4
--.RSM.Z. 1990-05-22T14:37:29.77 10.0 undecidable manual PG 82 0.3996 0.23 1.6
--.PGD.Z. 1990-05-22T14:37:26.70 10.0 undecidable manual SG 268 0.1221 0.66 0.4
--.CRE.Z. 1990-05-22T14:37:26.00 10.0 undecidable manual PG 172 0.2553 -0.55 1.2
--.SR3.Z. 1990-05-22T14:37:24.00 10.0 undecidable manual SG 272 0.0444 0.74 0.3
--.SFI.Z. 1990-05-22T14:37:24.15 10.0 undecidable manual SG 301 0.0444 0.95 0.2
--.PGD.Z. 1990-05-22T14:37:23.60 10.0 undecidable manual PG 268 0.1221 -0.16 1.9
--.SR3.Z. 1990-05-22T14:37:22.00 10.0 positive manual PG 272 0.0444 -0.16 3.7
--.SFI.Z. 1990-05-22T14:37:21.87 10.0 positive manual PG 301 0.0444 -0.25 3.5
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