Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.2 on date 24-05-1990 and time 16:58:20 (UTC) in region 3 km NW Propata (GE)

A magnitude Md 2.2 earthquake occured in region: 3 km NW Propata (GE), on

  • 24-05-1990 16:58:20 (UTC)
  • 24-05-1990 18:58:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5890, 9.1710 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Propata GE 3 142 142
Carrega Ligure AL 4 84 226
Rondanina GE 5 62 288
Fascia GE 6 81 369
Torriglia GE 8 2311 2680
Rovegno GE 9 554 3234
Valbrevenna GE 9 798 4032
Montebruno GE 9 240 4272
Gorreto GE 10 97 4369
Mongiardino Ligure AL 10 165 4534
Vobbia GE 10 409 4943
Cabella Ligure AL 11 528 5471
Fontanigorda GE 12 277 5748
Crocefieschi GE 12 548 6296
Zerba PC 13 77 6373
Montoggio GE 13 2067 8440
Ottone PC 13 516 8956
Savignone GE 15 3205 12161
Casella GE 15 3144 15305
Albera Ligure AL 15 325 15630
Neirone GE 15 916 16546
Roccaforte Ligure AL 15 136 16682
Davagna GE 15 1884 18566
Rocchetta Ligure AL 16 200 18766
Lumarzo GE 16 1535 20301
Favale di Malvaro GE 17 466 20767
Bargagli GE 17 2708 23475
Ronco Scrivia GE 17 4417 27892
Cerignale PC 17 127 28019
Cantalupo Ligure AL 18 527 28546
Busalla GE 18 5563 34109
Isola del Cantone GE 18 1540 35649
Rezzoaglio GE 19 995 36644
Fabbrica Curone AL 19 656 37300
Brallo di Pregola PV 19 599 37899
Moconesi GE 19 2614 40513
Tribogna GE 19 614 41127
Lorsica GE 19 468 41595
Uscio GE 19 2284 43879
Sant'Olcese GE 20 5906 49785

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Genova (586655 inhabitants)
57 Km SE of Alessandria (93943 inhabitants)
63 Km E of Savona (61345 inhabitants)
66 Km SW of Piacenza (102191 inhabitants)
66 Km S of Pavia (72576 inhabitants)
75 Km NW of La Spezia (93959 inhabitants)
84 Km E of Asti (76202 inhabitants)
85 Km SE of Vigevano (63310 inhabitants)
91 Km SW of Cremona (71901 inhabitants)
93 Km NW of Carrara (63133 inhabitants)
95 Km W of Parma (192836 inhabitants)
98 Km S of Milano (1345851 inhabitants)
99 Km NW of Massa (69479 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
M 2.0 		1990-05-24
16:58:20		 44.589 9.171 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 119589
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-24 16:58:20 ± 0.258
Latitude 44.5890 ± 0.0330
Longitude 9.1710 ± 0.0323
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 119589

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) 4477.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01498
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 119589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:51:00

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 119589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LSD.Z. 1990-05-24T16:58:51.80 10.0 undecidable manual PN 302 1.665 0.59 0.7
--.RSP.Z. 1990-05-24T16:58:48.31 10.0 undecidable manual PN 293 1.4652 0.56 0.8
--.STV.Z. 1990-05-24T16:58:47.13 10.0 undecidable manual PN 256 1.3431 0.9 0.3
--.ENR.Z. 1990-05-24T16:58:45.95 10.0 undecidable manual PN 254 1.2987 0.48 0.9
--.ORX.Z. 1990-05-24T16:58:45.34 10.0 undecidable manual PN 321 1.332 -0.64 0.7
--.IMI.Z. 1990-05-24T16:58:43.19 10.0 undecidable manual PN 234 1.1322 -0.04 1.5
--.ROB.Z. 1990-05-24T16:58:39.59 10.0 undecidable manual PG 253 0.9657 -0.8 0.5
--.FIN.Z. 1990-05-24T16:58:36.83 10.0 undecidable manual PG 241 0.777 -0.14 1.5
--.BOB.Z. 1990-05-24T16:58:31.50 10.0 undecidable manual SG 47 0.2553 0.38 0.5
--.PCP.Z. 1990-05-24T16:58:30.60 10.0 undecidable manual PG 264 0.444 -0.67 0.7
--.BOB.Z. 1990-05-24T16:58:26.50 10.0 negative manual PG 47 0.2553 -0.24 2.9
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