Earthquake with magnitude of Md 2.5 on date 30-05-1988 and time 04:13:40 (Italy) in region 8 km W Rocca Santa Maria (TE)

A magnitude Md 2.5 earthquake occured in region: 8 km W Rocca Santa Maria (TE), on

  • 30-05-1988 02:13:40 (UTC)
  • 30-05-1988 04:13:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.68, 13.43 at 10 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
Rocca Santa Maria TE 8 537 537
Cortino TE 9 656 1193
Valle Castellana TE 9 977 2170
Acquasanta Terme AP 11 2916 5086
Amatrice RI 13 2657 7743
Campotosto AQ 14 542 8285
Crognaleto TE 15 1297 9582
Accumoli RI 15 667 10249
Arquata del Tronto AP 16 1178 11427
Fano Adriano TE 16 296 11723
Torricella Sicura TE 18 2641 14364
Montorio al Vomano TE 19 8218 22582
Pietracamela TE 20 271 22853

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Teramo (54892 inhabitants)
36 Km N of L'Aquila (69753 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
66 Km E of Terni (111501 inhabitants)
67 Km E of Foligno (57155 inhabitants)
68 Km W of Pescara (121014 inhabitants)
70 Km NW of Chieti (51815 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km SE 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
Rev 1000 Md 2.5 1988-05-30
02:13:40
42.68 13.43 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 70479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-30 02:13:40 ± 0.21
Latitude 42.68 ± 0.01
Longitude 13.43 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 70479

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) 2100.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 70479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:06:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AM8.Z. 1988-05-30T02:14:12.30 10.0 undecidable manual SG 8 0.0079 1.31 0.1
--.ARV.Z. 1988-05-30T02:14:12.50 10.0 undecidable manual SG 336 0.008 1.02 0.2
--.ASS.Z. 1988-05-30T02:14:05.50 10.0 undecidable manual SG 304 0.0062 0.67 0.5
--.MNS.Z. 1988-05-30T02:14:03.50 10.0 undecidable manual SG 242 0.0056 0.76 0.4
--.SDI.Z. 1988-05-30T02:14:01.50 10.0 undecidable manual PG 163 0.009 1.01 0.5
--.CM8.Z. 1988-05-30T02:14:00.72 10.0 undecidable manual SG 338 0.005 0.05 0.9
--.ARV.Z. 1988-05-30T02:13:58.00 10.0 undecidable manual PG 336 0.008 -0.5 1.3
--.AM8.Z. 1988-05-30T02:13:58.88 10.0 undecidable manual PG 8 0.0079 0.67 1
--.ASS.Z. 1988-05-30T02:13:54.50 10.0 undecidable manual PG 304 0.0062 -0.16 2
--.SS8.Z. 1988-05-30T02:13:54.38 10.0 undecidable manual SG 336 0.0032 0.04 0.9
--.MNS.Z. 1988-05-30T02:13:53.00 10.0 undecidable manual PG 242 0.0056 -0.45 1.7
--.AQU.Z. 1988-05-30T02:13:52.50 10.0 undecidable manual SG 184 0.0028 -0.51 0.6
--.CM8.Z. 1988-05-30T02:13:51.31 10.0 undecidable manual PG 338 0.005 -0.95 0.8
--.SS8.Z. 1988-05-30T02:13:48.24 10.0 undecidable manual PG 336 0.0032 -0.36 1.9
--.AQU.Z. 1988-05-30T02:13:47.50 10.0 undecidable manual PG 184 0.0028 -0.33 1.9
--.ALP.Z. 1988-05-30T02:13:46.13 10.0 undecidable manual SG 43 0.0013 -1.18 0.2
--.ALP.Z. 1988-05-30T02:13:44.60 10.0 undecidable manual PG 43 0.0013 0.06 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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