Earthquake with magnitude of Md 2.3 on date 01-03-1987 and time 03:04:12 (UTC) in region 2 km S Calvignano (PV)
A magnitude Md 2.3 earthquake occured in region: 2 km S Calvignano (PV), on
- 01-03-1987 03:04:12 (UTC)
- 01-03-1987 04:04:12 (UTC +01:00) Italian time
and geographic coordinates (lat, lon) 44.9700, 9.1740 at 2 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.
Display location by
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Municipalities within 20 km from the epicenter
Distances are determinated based on the geographic coordintes of the (Istat).
| Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
|---|---|---|---|---|
| Calvignano | PV | 2 | 122 | 122 |
| Borgo Priolo | PV | 2 | 1474 | 1596 |
| Montalto Pavese | PV | 3 | 890 | 2486 |
| Oliva Gessi | PV | 4 | 176 | 2662 |
| Borgoratto Mormorolo | PV | 5 | 432 | 3094 |
| Torricella Verzate | PV | 5 | 844 | 3938 |
| Mornico Losana | PV | 5 | 641 | 4579 |
| Corvino San Quirico | PV | 5 | 1039 | 5618 |
| Fortunago | PV | 5 | 390 | 6008 |
| Casteggio | PV | 6 | 6805 | 12813 |
| Rocca de' Giorgi | PV | 6 | 87 | 12900 |
| Montebello della Battaglia | PV | 7 | 1628 | 14528 |
| Torrazza Coste | PV | 7 | 1680 | 16208 |
| Lirio | PV | 7 | 122 | 16330 |
| Santa Giuletta | PV | 7 | 1643 | 17973 |
| Pietra de' Giorgi | PV | 7 | 862 | 18835 |
| Montesegale | PV | 8 | 298 | 19133 |
| Redavalle | PV | 8 | 1069 | 20202 |
| Canevino | PV | 8 | 109 | 20311 |
| Montecalvo Versiggia | PV | 9 | 521 | 20832 |
| Rocca Susella | PV | 9 | 225 | 21057 |
| Robecco Pavese | PV | 9 | 565 | 21622 |
| Cigognola | PV | 9 | 1351 | 22973 |
| Casatisma | PV | 9 | 899 | 23872 |
| Ruino | PV | 9 | 723 | 24595 |
| Codevilla | PV | 9 | 997 | 25592 |
| Verretto | PV | 9 | 395 | 25987 |
| Volpara | PV | 10 | 134 | 26121 |
| Val di Nizza | PV | 10 | 624 | 26745 |
| Castana | PV | 10 | 721 | 27466 |
| Santa Maria della Versa | PV | 10 | 2430 | 29896 |
| Golferenzo | PV | 11 | 190 | 30086 |
| Pinarolo Po | PV | 11 | 1696 | 31782 |
| Retorbido | PV | 11 | 1538 | 33320 |
| Lungavilla | PV | 11 | 2429 | 35749 |
| Godiasco Salice Terme | PV | 12 | 3229 | 38978 |
| Montescano | PV | 12 | 404 | 39382 |
| Bressana Bottarone | PV | 12 | 3529 | 42911 |
| Barbianello | PV | 12 | 872 | 43783 |
| Pizzale | PV | 12 | 735 | 44518 |
| Broni | PV | 12 | 9364 | 53882 |
| Canneto Pavese | PV | 13 | 1353 | 55235 |
| Valverde | PV | 13 | 287 | 55522 |
| Caminata | PC | 13 | 252 | 55774 |
| Castelletto di Branduzzo | PV | 13 | 1033 | 56807 |
| Rivanazzano Terme | PV | 13 | 5312 | 62119 |
| Voghera | PV | 13 | 39421 | 101540 |
| Zavattarello | PV | 13 | 991 | 102531 |
| Montù Beccaria | PV | 13 | 1690 | 104221 |
| Nibbiano | PC | 14 | 2177 | 106398 |
| Casanova Lonati | PV | 14 | 458 | 106856 |
| Ponte Nizza | PV | 14 | 807 | 107663 |
| Bastida Pancarana | PV | 15 | 1023 | 108686 |
| Rovescala | PV | 15 | 901 | 109587 |
| Campospinoso | PV | 15 | 1032 | 110619 |
| San Damiano al Colle | PV | 15 | 656 | 111275 |
| Pozzol Groppo | AL | 15 | 328 | 111603 |
| Pancarana | PV | 15 | 316 | 111919 |
| Stradella | PV | 15 | 11622 | 123541 |
| Cecima | PV | 15 | 236 | 123777 |
| Zenevredo | PV | 15 | 486 | 124263 |
| Verrua Po | PV | 16 | 1272 | 125535 |
| Cervesina | PV | 16 | 1204 | 126739 |
| Rea | PV | 16 | 425 | 127164 |
| Albaredo Arnaboldi | PV | 16 | 250 | 127414 |
| Casalnoceto | AL | 16 | 980 | 128394 |
| Bagnaria | PV | 16 | 658 | 129052 |
| Varzi | PV | 17 | 3279 | 132331 |
| Volpedo | AL | 17 | 1227 | 133558 |
| Monleale | AL | 18 | 566 | 134124 |
| Mezzanino | PV | 18 | 1440 | 135564 |
| San Cipriano Po | PV | 18 | 488 | 136052 |
| Mezzana Rabattone | PV | 18 | 497 | 136549 |
| Bosnasco | PV | 18 | 634 | 137183 |
| Momperone | AL | 18 | 223 | 137406 |
| Pianello Val Tidone | PC | 18 | 2202 | 139608 |
| Ziano Piacentino | PC | 18 | 2556 | 142164 |
| Portalbera | PV | 19 | 1524 | 143688 |
| Pontecurone | AL | 19 | 3723 | 147411 |
| Volpeglino | AL | 19 | 148 | 147559 |
| Castellar Guidobono | AL | 19 | 399 | 147958 |
| Corana | PV | 19 | 812 | 148770 |
| Romagnese | PV | 19 | 687 | 149457 |
| Sommo | PV | 19 | 1145 | 150602 |
| Silvano Pietra | PV | 19 | 672 | 151274 |
| Montemarzino | AL | 20 | 341 | 151615 |
| Pecorara | PC | 20 | 730 | 152345 |
| Cava Manara | PV | 20 | 6707 | 159052 |
| Casei Gerola | PV | 20 | 2500 | 161552 |
| Gremiasco | AL | 20 | 324 | 161876 |
Municipalities with at least 50000 inhabitants
An earthquake occurred to
24 Km S of Pavia (72576 inhabitants)
42 Km W of Piacenza (102191 inhabitants)
44 Km E of Alessandria (93943 inhabitants)
46 Km SE of Vigevano (63310 inhabitants)
55 Km S of Milano (1345851 inhabitants)
63 Km S of Sesto San Giovanni (81608 inhabitants)
63 Km S of Rho (50434 inhabitants)
65 Km NE of Genova (586655 inhabitants)
66 Km S of Cinisello Balsamo (75078 inhabitants)
68 Km SE of Novara (104380 inhabitants)
69 Km S of Monza (122671 inhabitants)
69 Km W of Cremona (71901 inhabitants)
72 Km S of Legnano (60262 inhabitants)
76 Km SE of Busto Arsizio (83106 inhabitants)
77 Km E of Asti (76202 inhabitants)
82 Km SE of Gallarate (53343 inhabitants)
90 Km SW of Bergamo (119381 inhabitants)
92 Km NE of Savona (61345 inhabitants)
93 Km W of Parma (192836 inhabitants)
94 Km S of Como (84495 inhabitants)
98 Km S of Varese (80799 inhabitants)
Recent and historical seismicity
Not available maps for this sismic event.
Seismic hazard
Not available maps for this sismic event.
Shakemap
Not available maps for this sismic event.
Felt maps
Not available maps for this sismic event.
Locations history
| Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
|---|---|---|---|---|---|---|---|---|
|
Bulletin Rev1000 |
Md 2.3 | 1987-03-01 03:04:12 |
44.97 | 9.174 | 2 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 42259 |
Preferred location and magnitude until now.
Origin information
Origin
| Field | Value |
|---|---|
| Time (UTC) | 1987-03-01 03:04:12 ± 0.536 |
| Latitude | 44.9700 ± 0.0163 |
| Longitude | 9.1740 ± 0.0425 |
| Depth (km) | 2 ± 7 (from location) |
| Evaluation mode of Origin | manual |
| Evaluation status of Origin | reviewed |
| Version | 1000 -> BULLETIN-VAX |
| Event type | earthquake |
| Origin ID | 42259 |
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) | 3801.6 |
| Confidence level of the uncertainty (%) | 68 |
Quality
| Field | Value |
|---|---|
| Largest azimuthal gap in station distribution as seen from epicenter (degree) | 241 |
| Number of associated phases, regardless of their use for origin computation | 6 |
| Number of defining phases | 6 |
| RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
| Epicentral distance of station closest to the epicenter (degree) | 0.00251 |
| Epicentral distance of station farthest from the epicenter (degree) | 0.00923 |
| Number of stations at which the event was observed | 3 |
| Number of stations from which data was used for origin computation | 3 |
Magnitude information
Md:2.3
| Field | Value |
|---|---|
| Value | 2.3 |
| Uncertainty | |
| Num. used stations | 1 |
| Type of magnitude | Md |
| Reference to an origin | 42259 |
| Agency | INGV |
| Autore | Bollettino Sismico Italiano INGV |
| Time of creation (UTC) | 2013-01-04 17:41:58 |
Picking and Arrival
| SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| --.FIN.Z. | 1987-03-01T03:04:48.00 | 10.0 | undecidable | manual | SG | 222 | 1.0212 | -0.31 | 0.6 | |
| --.FIN.Z. | 1987-03-01T03:04:33.20 | 10.0 | undecidable | manual | PG | 222 | 1.0212 | 0.23 | 1.4 | |
| --.VEA.Z. | 1987-03-01T03:04:25.10 | 10.0 | undecidable | manual | SG | 104 | 0.3219 | 0.53 | 0.1 | |
| --.CO9.Z. | 1987-03-01T03:04:23.00 | 10.0 | undecidable | manual | SG | 136 | 0.2775 | 0.12 | 0.8 | |
| --.VEA.Z. | 1987-03-01T03:04:19.20 | 10.0 | undecidable | manual | PG | 104 | 0.3219 | -0.07 | 2.1 | |
| --.CO9.Z. | 1987-03-01T03:04:18.00 | 10.0 | undecidable | manual | PG | 136 | 0.2775 | -0.29 | 0.9 |
TDMT - Time Domain Moment Tensor
Not available TDMT solution for this seismic event.
Fault Plane solutions in the area
Not available maps for this sismic event.